11)

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

SSC CGL 2022

A)

Astrophysics

B)

Photonics

C)

Optics

D)

Acoustics

12)

How many protons are there in a lithium nucleus?

SSC CGL 2022

A)

5

B)

4

C)

2

D)

3

13)

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

SSC CGL 2022

A)

21.2

B)

25.1

C)

22.4

D)

20.3

14)

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

15)

The rate of doing work is called:

SSC CGL 2022

A)

force

B)

energy

C)

impulse

D)

power

16)

Acceleration is equal to the rate of change of _________.

SSC CGL 2022

A)

momentum

B)

position

C)

displacement

D)

velocity

17)

A ‘gnomon’ is a part of a ________.

SSC CGL 2022

A)

bolometer

B)

transformer

C)

telescope

D)

sundial

18)

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

SSC CGL 2022

A)

Wave height

B)

Wave frequency

C)

Wave length

D)

Wave period

19)

What is the unit of work done?

SSC CGL 2022

A)

Ampere

B)

Decibel

C)

Watt

D)

Joule

20)

In Golgi apparatus, the maturing face is:

SSC CGL 2022

A)

bi-concave

B)

convex

C)

spherical

D)

concave