Physics Quiz For Railway And SSC CGL, SSC CHSL Exams
1. Number of basic SI unit is
A) 4
B) 7
C) 6
D) 5

2. Which of the following is NOT the unit of energy?
A) Calorie
B) Joule
C) Electronic volt
D) Watt

3. Light year is unit of:
A) Time
B) Speed of light
C) Distance
D) Mass

4. Which of the following is NOT the unit of time?
A) Parallactic second
B) Micro second
C) Leap year
D) Solar day

5. SI unit of luminious intensity is:
A) Lumen
B) Lux
C) Candela
D) Watt

6. Parasec is the unit of:
A) Distance
B) Time
C) Intensity of light
D) Magnetic line

7. Ampere is the unit of:
A) Current electricity
B) Magnetic field
C) Electric charge
D) Resistence

8. Curie is the unit of:
A) Temperature
C) Heat
D) Energy

9. Decibel is the unit of
B) Intensity of sound
C) Intensity of heat
D) None of these

10.Temperature can be expressed as derived quantity in terms of any of the following
A) Length and mass
B) Mass and time
C) Length, mass and time
D) None of these

11. One astronomical unit is the average distance between
A) Earth and the sun
B) Earth and the moon
C) Jupiter and the sun
D) Pluto and the sun

12. Which of the following physical quantities have the same dimensions?
A) Kinetic energy, velocity
B) Work and torque
C) Potential energy, linear momentum
D) Angular momentum and work

13. the most suitable unit for expressing nuclear radious is
A) Micron
B) Nano metre
C) Fermi
D) Angstrom

14. Distance of stars are measured in
A) Galactic unit
B) Seller mile
C) Cosmic kilometer
D) Light year

15. Masses of stars and galaxies are usually expressed in terms of
A) Neutron mass
B) Earth’s mass
C) Solar mass
D) Lunar mass

16. When body is accelerated:
A) Its velocity never changes
B) Its speed always changes
C) Its direction always changes
D) Its speed may or may not changes

17. Definition of force comes from newtons
A) First law of motion
B) Second law motion
C) Third law motion
D) Law of gravitation

18. A Rocket works on the principle of conversation of
A) Mass
B) Linear momentum
C) Energy
D) Angular momentum

19. Two satellite are moving in the same circular orbit around the earth they must have the same
A) Mass
B) Angular momentum
C) KE
D) Speed

20.The ratio of the inertial mass to gravitational mass is equal to
A) 1/2
B) 1
C) 2
D) None

21.The intensity of the earth’s gravitational field is maximum at
A) The equator
B) The centre of the earth
C) The pole
D) None of these

22.As we go from the equator to the poles, the value of g
A) Remains the same
B) Increases
C) Decreases
D) None of these

23.A satellite revolves around the earths in elliptic orbit its speed is
A) Sama at all points on the orbit
B) Greatest when it is farthest from the earth
C) Greatest when it is closest to the earths
D) None of these

24.Who among the following gave first the experimental value of G?
A) Newton
B) Cavendish
C) Galileo
D) None of these

25.The escape velocity from the surface of the earths does not depend on
A) Mass of the earths
B) Mass of the body