1)

The value of \(10^{-9}\) metre = _______ Angstrom

, Avg: 00:38 , 34%✓

A)

100

B)

0.1

C)

1

D)

10

2)

Which of the following statements is/are correct?
Statements:
1) Ampere's Law describes the relationship between electric current and the magnetic field it produces.
2) Maxwell's equations are a set of four fundamental equations governing electric and magnetic fields in the absence of charges and currents.

SSC CGL Mains 2024

A)

Neither Statement 1 nor 2

B)

Only Statement 2

C)

Only Statement 1

D)

Both Statements 1 and 2

3)

What is the name of the ion with a charge of −1?

SSC CGL Mains 2024

A)

Anion

B)

Cation

C)

Monovalent ion

D)

Polyvalent ion

4)

Who among the following was the President of India when India launched its first Nuclear test in Pokhran?

SSC CGL Mains 2024

A)

Fakhruddin ali Ahmed

B)

VV Giri

C)

Giani Zail Singh

D)

Dr APJ Abdul Kalam

5)

SSC CGL Mains 2024

A)

Biot-Savart law

B)

Ohm’s law

C)

Charle's law

D)

Coulomb’s law

6)

Who discovered the laws of levers and pulleys, which allow us to move heavy objects using small forces?

SSC CGL Mains 2024

A)

Democritus

B)

Eudoxus

C)

Archimedes

D)

Pythagoras

7)

Which measuring instrument consists of a metal triangular frame supported on three legs, used to measure the radius of curvature of an object such as lenses and curved mirrors which are spherical in shape?

SSC CGL 2022

A)

Verniercaliper

B)

Spherometer

C)

Viscometer

D)

Screw gauge

8)

In 1653, which French scientist observed that if some pressure is applied to any point of an incompressible fluid, the same pressure is transmitted to all points of the fluid and to the walls of the vessel?

, Avg: 00:12 , 100%✓ SSC CGL 2022

A)

Blaise Pascal

B)

Evangelista Torricelli

C)

Daniel Bernoulli

D)

Eugene Bourdon

9)

The SI unit of speed is _______.

SSC CGL 2022

A)

km/hr

B)

km/s

C)

m/s

D)

m/hr

10)

The motion of ______ body is an example of uniformly accelerated motion.

, Avg: 00:20 , 50%✓ SSC CGL 2022

A)

parabolic

B)

decelerating

C)

resting

D)

freely falling

11)

Identify the correct statement about inertia.

, Avg: 00:14 , 60%✓ SSC CGL 2022

A)

Lesser the mass, greater the inertia

B)

Lesser the weight, greater the inertia

C)

Greater the mass, greater the inertia

D)

Greater the mass, lesser the inertia

12)

Distance covered by object is ______ to time.

, Avg: 00:09 , 42%✓ SSC CGL 2022

A)

inversely proportional

B)

directly proportional

C)

equal proportional

D)

double proportional

13)

The SI unit of acceleration is ________.

, Avg: 00:04 , 80%✓ SSC CGL 2022

A)

m/s

B)

m2/s²

C)

m²/s

D)

m/s²

14)

In Golgi apparatus, the maturing face is:

SSC CGL 2022

A)

bi-concave

B)

convex

C)

spherical

D)

concave

15)

What is the unit of work done?

, Avg: 00:07 , 80%✓ SSC CGL 2022

A)

Ampere

B)

Decibel

C)

Watt

D)

Joule

16)

Which of the following is the horizontal distance between two successive crests?

, Avg: 00:12 , 33%✓ SSC CGL 2022

A)

Wave height

B)

Wave frequency

C)

Wave length

D)

Wave period

17)

A ‘gnomon’ is a part of a ________.

, Avg: 00:11 , 66%✓ SSC CGL 2022

A)

bolometer

B)

transformer

C)

telescope

D)

sundial

18)

Acceleration is equal to the rate of change of _________.

, Avg: 00:06 , 100%✓ SSC CGL 2022

A)

momentum

B)

position

C)

displacement

D)

velocity

19)

The rate of doing work is called:

, Avg: 00:12 , 100%✓ SSC CGL 2022

A)

force

B)

energy

C)

impulse

D)

power

20)

As described in ‘Ain-i-Akbari’ by Abul Fazl-i-Allami, ‘gaz’ (unit of measuring length) was divided into equal parts called ______.

SSC CGL 2022

A)

liksha

B)

rajahkan

C)

angul

D)

tassuj

21)

One mole of an ideal gas occupies a volume of ______ litre at 273 K and 1 atm pressure.

, Avg: 00:26 , 80%✓ SSC CGL 2022

A)

21.2

B)

25.1

C)

22.4

D)

20.3

22)

How many protons are there in a lithium nucleus?

, Avg: 00:11 , 77%✓ SSC CGL 2022

A)

5

B)

4

C)

2

D)

3

23)

What is the study of the production and propagation of sound waves called?

, Avg: 00:09 , 50%✓ SSC CGL 2022

A)

Astrophysics

B)

Photonics

C)

Optics

D)

Acoustics

24)

Which of the following symmetries is exhibited by arthropods?

, Avg: 00:11 , 45%✓ SSC CGL 2022

A)

Radial

B)

Translational

C)

Axial

D)

Bilateral

25)

Which of the following is the physical quantity for the expression arc/radius?

, Avg: 00:07 , 80%✓ SSC CGL 2022

A)

Plane angle

B)

Velocity

C)

Linear momentum

D)

Surface tension

26)

What is the power of ‘second’ in the SI unit of acceleration?

, Avg: 00:10 , 66%✓ SSC CGL 2022

A)

+1

B)

0

C)

-2

D)

-1

27)

______ is defined as the temperature to which the air would have to cool (at constant pressure and constant water vapour content) in order to reach saturation.

, Avg: 00:11 , 57%✓ SSC CGL 2022

A)

Dew point temperature

B)

Air temperature

C)

Surface temperature

D)

Relative humidity

28)

The range of ______ force is of the order of 10^{−16 m}.

SSC CGL 2022

A)

gravitational

B)

electromagnetic

C)

strong nuclear

D)

weak nuclear

29)

Gold and copper happen to absorb ______ and violet light, leaving yellow light.

, Avg: 00:15 , 37%✓ SSC CGL 2022

A)

red

B)

blue

C)

green

D)

orange

30)

Which of the following laws deduces the expression for the force between two stationary point charges in vacuum or free space?

, Avg: 00:08 , 37%✓ SSC CGL 2022

A)

Gauss' Law

B)

Coulomb’s Law

C)

Lenz’s Law

D)

Ohm’s Law

31)

Which of the following elements is NOT suitable for the fabrication of a light emitting diode structure?

, Avg: 00:30 , 28%✓ SSC CGL 2022

A)

Germanium

B)

Indium gallium nitride

C)

Gallium phosphide

D)

Gallium arsenide

32)

Which law of Newton provides a quantitative definition of force?

, Avg: 00:09 , 52%✓ SSC CGL 2022

A)

First law of motion

B)

Universal law of gravitation

C)

Second law of motion

D)

Third law of motion

33)

A Ghatam is a ______.

, Avg: 00:13 , 62%✓ SSC CGL 2022

A)

small handheld drum that resembles a tambourine

B)

percussion instrument made of leather and jackwood

C)

large, narrow-mouthed earthenware pot used as a percussion instrument

D)

wind instrument made of wood and metal

34)

The phenomenon of deviation of light rays from their original path, when they pass from one medium to another, is called ______.

, Avg: 00:32 , 100%✓ SSC CPO 2020

A)

diffraction

B)

obstruction

C)

refraction

D)

reflection

35)

In a galvanic cell, the half-cell in which oxidation takes place is called ______ and it has a negative potential with respect to the solution.

SSC CPO 2020

A)

anode

B)

diode

C)

triode

D)

cathode

36)

______ are also known as heat waves.

SSC CPO 2020

A)

X-rays

B)

Gamma rays

C)

Light waves

D)

Infra-red waves

37)

______ is a naturally occurring phenomenon that is responsible for the heating of the Earth’s surface and atmosphere.

, Avg: 00:11 , 50%✓ SSC CPO 2020

A)

Greenhouse effect

B)

Global heating

C)

Radiation

D)

Global warming

38)

______ waves include visible light waves, X-rays, gamma rays, radio waves, microwaves, ultraviolet and infrared waves.

, Avg: 00:20 , 100%✓ SSC CPO 2020

A)

Electromagnetic

B)

Mechanical

C)

Electric

D)

Magnetic

39)

‘mho’ is the unit of ______ of a substance.

, Avg: 00:11 , 100%✓ SSC CPO 2020

A)

conductance

B)

resistivity

C)

conductivity

D)

resistance

40)

30̊ Celcius = ______ Kelvin (approximately)

, Avg: 00:04 , 50%✓ SSC CPO 2020

A)

- 243

B)

- 30

C)

130

D)

303

41)

One calorie of heat energy is equivalent to approximately ______ joules of mechanical energy.

, Avg: 00:04 , 100%✓ SSC CPO 2020

A)

0.24

B)

4.2

C)

0.48

D)

2.4

42)

Electrical conductance through metals is called electronic conductance and it ______.

, Avg: 00:24 , 42%✓ SSC CPO 2020

A)

decreases with increase in temperature

B)

increases with increase in temperature

C)

decreases with decrease in temperature

D)

does not depend on temperature

43)

The discovery and understanding of electromagnetic induction is based on a long series of experiments carried out by ______.

, Avg: 00:09 , 56%✓ SSC CPO 2020

A)

Rutherford

B)

Einstein

C)

Faraday and Henry

D)

Planck and Fermi

44)

The charge has to be passed ______ to obtain maximum work from a galvanic cell.

SSC CPO 2020

A)

uniformly

B)

inversely

C)

proportionately

D)

reversibly

45)

A set of equations involving electric and magnetic fields, and their sources, the charge and current densities are known as ______ equations.

SSC CPO 2020

A)

Newton’s

B)

Bhor’s

C)

Einstein’s

D)

Maxwell’s

46)

Standing in an open ground on a cloudless day, at what time will your shadow be the shortest?

, Avg: 00:05 , 66%✓ SSC CPO 2020

A)

15:00

B)

07:00

C)

12:00

D)

09:00

47)

What is the meaning of the Greek origin word, ‘Elektron’?

, Avg: 00:06 , 50%✓ SSC CPO 2020

A)

Ebonite

B)

Amber

C)

Charge

D)

Negative

48)

Vibration of which among the following produces only odd harmonics?

, Avg: 00:06 , 50%✓ SSC CPO 2020

A)

An air column in a closed organ pipe

B)

A vibrating rod fixed at two ends

C)

An air column in an open organ pipe

D)

A vibrating string fixed at two ends

49)

1 horse power is equal to approximately ______ watts.

, Avg: 00:04 , 100%✓ SSC CPO 2020

A)

500

B)

750

C)

1000

D)

250

50)

Which among the following is an ‘action-at-a-distance’ force ?

, Avg: 00:15 , 50%✓ SSC CPO 2020

A)

Friction

B)

Tension

C)

Pull

D)

Gravitation

51)

If an object executes 10 oscillations per second, then its frequency in kilohertz is equal to:

, Avg: 00:19 , 50%✓ SSC CPO 2020

A)

1

B)

10

C)

0.01

D)

0.1

52)

Power exerted by an object moving in a straight line is equal to Force multiplied by ______.

, Avg: 00:32 , 100%✓ SSC CPO 2020

A)

Velocity

B)

Displacement

C)

Acceleration

D)

Work

53)

‘Femto’ means ten raised to the power of ______.

, Avg: 00:09 , 63%✓ SSC CPO 2020

A)

-12

B)

-16

C)

-20

D)

-15

54)

In the context of ocean energy conversion, ‘T’ in OTEC stands for:

, Avg: 00:21 , 41%✓ SSC CPO 2020

A)

Thermodynamic

B)

Technological

C)

Thermal

D)

Tidal

55)

Which one among the following measures the same quantity as that is measured by the SI unit ‘pascal’?

, Avg: 00:11 , 51%✓ SSC CPO 2020

A)

Joule

B)

Torr

C)

Newton

D)

Watt

56)

The difference in temperature between two bodies is 30 degree centigrade. What is the difference in degree Fahrenheit?

, Avg: 00:09 , 27%✓ SSC CPO 2020

A)

54

B)

86

C)

72

D)

64

57)

Which of the following devices is used for measuring distance?

, Avg: 00:05 , 84%✓ SSC Selection Post Matric 2022

A)

Gnomon

B)

Odometer

C)

Manometer

D)

Pyrometer

58)

The technology of production of ultra-high magnetic fields is based on which of the following scientific principles?

SSC Selection Post Matric 2022

A)

Digital logic

B)

Light amplification by stimulated emission of radiation

C)

 Photoelectric effect

D)

Superconductivity

59)

What is the full form of LED, which are among the most widely used of all the different types of semiconductor diodes available today and are commonly used in TV and colour displays?

SSC Selection Post Matric 2022

A)

Light Emitting Diode

B)

Light Emanating Diode

C)

Light Energy Diode

D)

Light Emersion Diode

60)

Which of the following terms is used for stored energy that depends upon the relative position of various parts of a system?

, Avg: 00:37 , 100%✓ SSC Selection Post Matric 2022

A)

Mechanical energy

B)

Potential energy

C)

Kinetic energy

D)

Thermal energy

61)

‘Force’ divided by ‘mass’ is equal to:

, Avg: 00:12 , 80%✓ SSC Selection Post Matric 2022

A)

acceleration

B)

time

C)

displacement

D)

velocity

62)

Who among the following gave the concept of ‘paradox of thrift’?

SSC Selection Post Matric 2022

A)

Abhijeet Banerjee

B)

John Maynard Keynes

C)

Adam Smith

D)

Amartya Sen

63)

Which of the following is dimensionless?

, Avg: 00:14 , 50%✓ SSC Selection Post Matric 2022

A)

Deforming force

B)

Longitudinal stress

C)

Longitudinal strain

D)

Shear stress

64)

What does LED stand for?

, Avg: 00:11 , 66%✓ SSC CHSL 2021

A)

Light Efficient Device

B)

Light Emitting Decorder

C)

Light Energy Device

D)

Light Emitting Diode

65)

What is the total charge of an electric dipole?

, Avg: 00:05 , 50%✓ SSC CHSL 2021

A)

0

B)

-10

C)

+1

D)

10

66)

Who among the following introduced the concept of electric field for the first time?

, Avg: 00:10 , 66%✓ SSC CHSL 2021

A)

Blaise Pascal

B)

Michael Faraday

C)

Charles Augustin de Coulomb

D)

Joseph Henry

67)

A mass of snow and ice that moves slowly under the influence of gravity along a confined course away from its place of accumulation is called a _______.

, Avg: 00:11 , 75%✓ SSC CHSL 2021

A)

glacier

B)

plateau

C)

lagoon

D)

block mountain

68)

Which everyday morning ritual is part of quantum mechanics?

, Avg: 00:17 , 50%✓ SSC CHSL 2021

A)

Brushing teeth

B)

Ringing of an alarm clock

C)

Making tea

D)

Reading newspaper

69)

Heat, in ______, is a type of energy transfer from a warmer substance to a colder one.

, Avg: 00:11 , 90%✓ SSC CHSL 2021

A)

magnet

B)

friction

C)

thermodynamics

D)

gravity

70)

The inertia of an object is measured by its ______.

, Avg: 00:10 , 80%✓ SSC CHSL 2021

A)

volume

B)

speed

C)

area

D)

mass

71)

Which of the following is a vector quantity?

, Avg: 00:17 , 16%✓ SSC CHSL 2021

A)

Electric current

B)

Electric flux

C)

Electric field

D)

Electric charge

72)

What is the SI unit for measuring pressure?

, Avg: 00:05 , 100%✓ SSC CHSL 2021

A)

Pascal

B)

Candela

C)

Kelvin

D)

Ampere

73)

Which of the following combinations of measures of quantity and unit is NOT a correct match?

, Avg: 00:18 , 66%✓ SSC CHSL 2021

A)

Weight - Cubic metre

B)

Temperature - Kelvin

C)

Pressure - Pascal

D)

Mass - Kilogram

74)

Big Bang theory explains:

, Avg: 00:09 , 50%✓ SSC CHSL 2021

A)

origin of Universe

B)

origin of Stars

C)

origin of Galaxies

D)

origin of Solar System

75)

Which of the following is not a good conductor of electricity?

, Avg: 00:03 , 22%✓ SSC CHSL 2021

A)

Graphite

B)

Gold

C)

Diamond

D)

Soil

76)

Infrared optical ______ can be used for measuring and monitoring temperatures and hot spots of jet engine rotor blades.

, Avg: 00:12 , 33%✓ SSC CHSL 2021

A)

hygrometer

B)

ammeter

C)

pyrometer

D)

machmeter

77)

What is the name of the instrument used for measuring the speed and rate of flow of a fluid that is flowing in a pipe?

, Avg: 00:14 , 60%✓ SSC CHSL 2021

A)

Venturimeter

B)

Cryometer

C)

Odometer

D)

Machmeter

78)

What is the rate at which a wave moves through water, and is measured in knots?

, Avg: 00:43 , 40%✓ SSC CHSL 2021

A)

Wave crest and trough

B)

Wave speed

C)

Wave height

D)

Wave frequency

79)

______ is the process of allowing particles in suspension in water to settle out of the suspension under the effect of gravity.

, Avg: 00:11 , 20%✓ SSC CHSL 2021

A)

Filtration

B)

Decantation

C)

Distillation

D)

Sedimentation

80)

What is the boiling point of water at sea level?

, Avg: 00:09 , 55%✓ SSC CHSL 2021

A)

150°C

B)

250°C

C)

100°C

D)

50°C

81)

Which of the following is an example of gravitational potential energy?

, Avg: 00:14 , 33%✓ SSC CHSL 2021

A)

Water that is behind a dam

B)

Bullet fired from a gun

C)

Foot kicking a ball

D)

Moving car

82)

Which of the following is responsible for producing green light in fireworks?

, Avg: 00:11 , 71%✓ SSC CHSL 2021

A)

Silicon

B)

Potassium

C)

Sodium

D)

Barium

83)

Which of the following is a pointing device used to move an object on the screen of a computer in any direction?

, Avg: 00:11 , 64%✓ SSC CHSL 2021

A)

Modem

B)

Joystick

C)

Server

D)

Floptical

84)

Which scientific instrument is used to measure the height of an aircraft above a fixed level?

, Avg: 00:05 , 59%✓ SSC CHSL 2021

A)

Barometer

B)

Fathometer

C)

Wattmeter

D)

Altimeter

85)

Which of the following is measured in the unit called Gauss?

, Avg: 00:04 , 66%✓ SSC CHSL 2021

A)

Radius of the nuclei

B)

Magnetic induction

C)

Marine depth

D)

Force

86)

Name the law in Physics which states that equal volume of all gases under the same conditions of temperature and pressure contain equal number of molecules.

, Avg: 00:12 , 41%✓ SSC CGL 2020

A)

Avogadro’s Law

B)

Boyles's Law

C)

Ohm’s Law

D)

Charles's Law

87)

What is the colour of the light emitted by the Sun?

, Avg: 00:04 , 56%✓ SSC CGL 2020

A)

White

B)

Red

C)

Yellow

D)

Orange

88)

The total number of images formed by two mirrors inclined at 120° to each other is _______.

, Avg: 00:17 , 44%✓ SSC CGL 2020

A)

4

B)

3

C)

2

D)

1

89)

Which Institution has the final authority to interpret the Constitution of India?

, Avg: 00:10 , 100%✓ SSC CGL 2016

A)

Parliament

B)

Supreme Court of India

C)

President

D)

Attorney General of India

90)

In bio fortification technique plant breeders use breeding to overcome

, Avg: 00:08 , 50%✓ SSC CGL 2016

A)

Loss due to insect pests

B)

Decrease in food production

C)

Deficiencies of micronutrients and vitamins

D)

Loss due to plant diseases

91)

Fixed Foreign Exchange Rate can be changed by

, Avg: 00:06 , 66%✓ SSC CGL 2016

A)

RBI

B)

SEBI

C)

Ministry of Finance

D)

FIPB

92)

The Kovvada Nuclear Park project is proposed to be setup in which State?

SSC CGL 2016

A)

Rajasthan

B)

Uttar Pradesh

C)

Andhra Pradesh

D)

Karnataka

93)

Which country is in the process of building the largest single Aperture Radio Telescope - FAST

, Avg: 00:10 , 100%✓ SSC CGL 2016

A)

Japan

B)

China

C)

USA

D)

Russia

94)

Polio is caused by

, Avg: 00:05 , 33%✓ SSC CGL 2016

A)

Bacteria

B)

Fungus

C)

Protozoa

D)

Virus

95)

Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in

SSC CGL 2016

A)

Conduction

B)

Convection

C)

Radiation

D)

Both conduction and convection

96)

The transfer of minerals from top soil to subsoil through soil-water is called?

SSC CGL 2016

A)

Percolation

B)

Conduction

C)

Leaching

D)

Transpiration

97)

At Barren Island, the only active volcano in India is situated in

SSC CGL 2016

A)

Nicobar Islands

B)

Andaman Islands

C)

Lakshadweep

D)

Minicoy

98)

Which is the highest award for gallantry during peacetime?

, Avg: 00:07 , 33%✓ SSC CGL 2016

A)

Vir Chakra

B)

Param Vir Chakra

C)

Ashok Chakra

D)

Mahavir Chakra

99)

Pump priming should be resorted to at a time of?

SSC CGL 2016

A)

Inflation

B)

Deflation

C)

Stagflation

D)

Reflation

100)

C.K. Naidu Cup is associated with which of the following sporting events?

, Avg: 00:06 , 33%✓ SSC CGL 2016

A)

Tennis

B)

Cricket

C)

Hockey

D)

Golf

101)

Energy travels from Sun to Earth through

, Avg: 00:04 , 66%✓ SSC CGL 2016

A)

conduction

B)

radiation

C)

convection

D)

modulation

102)

Which of the following State has become India's first carbon free State?

, Avg: 00:06 , 100%✓ SSC CGL 2016

A)

Himachal Pradesh

B)

Madhya Pradesh

C)

Uttar Pradesh

D)

Maharashtra

103)

Which of the following institutions was not founded by Mahatama Gandhi?

, Avg: 00:08 , 33%✓ SSC CGL 2016

A)

Sabarmati Ashram

B)

Sevagram Ashram

C)

 Phoenix Ashram

D)

Vishwa Bharti

104)

In IT terminology failure in the kernel is called as

, Avg: 00:08 , 50%✓ SSC CGL 2016

A)

crash

B)

crash dump

C)

dump

D)

Kernel error

105)

Temperature of distant luminous bodies can be determined by

, Avg: 00:06 , 66%✓ SSC CGL 2016

A)

Mercury thermometers

B)

Gas thermometers

C)

Pyrometers

D)

Colour thermometers

106)

The largest herbarium of India is located at

, Avg: 00:08 , 50%✓ SSC CGL 2016

A)

Kolkata

B)

Lucknow

C)

Mumbai

D)

Coimbatore

107)

Tsangpo is the other name in Tibet for ____________ .

, Avg: 00:05 , 50%✓ SSC CGL 2016

A)

Kosi

B)

Gandak

C)

Brahmaputra

D)

Ganga

108)

The Upanishads are the ‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌‌______________________ .

, Avg: 00:05 , 100%✓ SSC CGL 2016

A)

Great Epics

B)

Story Books

C)

Law Books

D)

Source of Hindu Philosophy

109)

The people of the Indus valley civilisation worshipped ____________________.

, Avg: 00:04 , 33%✓ SSC CGL 2016

A)

Pashupati

B)

Vishnu

C)

Indra

D)

Brahma

110)

Appointments for all India Services are made by

, Avg: 00:06 , 33%✓ SSC CGL 2016

A)

UPSC

B)

President

C)

Prime Minister

D)

Parliament

111)

The Residuary powers of legislation under Indian Constitution rests with

, Avg: 00:15 , 33%✓ SSC CGL 2016

A)

President

B)

Prime Minister

C)

Parliament

D)

States

112)

India shares longest international boundary with which country?

, Avg: 00:03 , 50%✓ SSC CGL 2016

A)

Bangladesh

B)

China

C)

Nepal

D)

Bhutan

113)

Money market is a market for _______________

, Avg: 00:12 , 50%✓ SSC CGL 2016

A)

Short term fund

B)

Long term fund

C)

Negotiable instruments

D)

Sale of shares

114)

The first electron shell which is the nearest to the nucleus never holds more than 'n' electrons, where 'n' is equal to:

, Avg: 00:13 , 66%✓ SSC CGL 2020

A)

6

B)

2

C)

4

D)

8

115)

How many degrees does the Earth rotate about its own axis in one hour?

, Avg: 00:10 , 55%✓ SSC CGL 2020

A)

15

B)

20

C)

24

D)

10

116)

Ozone at the higher level of the atmosphere is a product of ______ acting on oxygen molecules.

, Avg: 00:07 , 61%✓ SSC CGL 2020

A)

X-rays

B)

UV radiation

C)

IR radiation

D)

gamma rays

117)

Which among the following is a cation?

, Avg: 00:14 , 45%✓ SSC CGL 2020

A)

Ammonium

B)

Iodide

C)

Fluoride

D)

Chloride

118)

Which among the following has its refractive index closest to that of crown glass?

, Avg: 00:11 , 20%✓ SSC CGL 2020

A)

Sapphire

B)

Ruby

C)

Diamond

D)

Canada balsam

119)

The power of a lens is -2.0 D. Here 'D' stands for:

, Avg: 00:03 , 78%✓ SSC CGL 2020

A)

dilation

B)

distance

C)

dioptre

D)

degree

120)

Which among the following is NOT an insulator?

, Avg: 00:08 , 21%✓ SSC CGL 2020

A)

Mercury

B)

Dry Paper

C)

Glass

D)

Ebonite

121)

'Torr' is a unit of _______.

, Avg: 00:04 , 66%✓ SSC CGL 2020

A)

pressure

B)

force

C)

power

D)

energy

122)

What is the velocity of sound in air?

, Avg: 00:03 , 71%✓ SSC CGL 2020

A)

220 m/sec

B)

343 m/sec

C)

232 m/sec

D)

110 m/sec

123)

The rating for a fuse used in a household electric circuit is provided on the basis of :

, Avg: 00:09 , 36%✓ SSC CGL 2020

A)

Resistance

B)

Current

C)

Power

D)

Voltage