SSC CHSL 202141)Which of the following is a pointing device used to move an object on the screen of a computer in any direction?
Joystick
SSC CHSL 202142)Which of the following is responsible for producing green light in fireworks?
Barium
SSC CHSL 202143)Which of the following is an example of gravitational potential energy?
Water that is behind a dam
SSC CHSL 202144)What is the boiling point of water at sea level?
100°C
SSC CHSL 202145)______ is the process of allowing particles in suspension in water to settle out of the suspension under the effect of gravity.
Sedimentation
SSC CHSL 202146)What is the rate at which a wave moves through water, and is measured in knots?
Wave speed
SSC CHSL 202147)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?
Venturimeter
SSC CHSL 202148)Infrared optical ______ can be used for measuring and monitoring temperatures and hot spots of jet engine rotor blades.
pyrometer
SSC CHSL 202149)Which of the following is not a good conductor of electricity?
Diamond
SSC CHSL 202150)Big Bang theory explains:
origin of Universe