Deekshaa Study Centre

Here are 10 physics MCQ questions for SSC and Rail exams:

*1. What is the SI unit of force?*
a) Joule
b) Newton
c) Pascal
d) Watt

*Answer:* b) Newton

*2. Which type of mirror is used by dentists to see large images of patient's teeth?*
a) Convex mirror
b) Concave mirror
c) Plane mirror
d) Spherical mirror

*Answer:* b) Concave mirror

*3. What is the speed of sound in air?*
a) 343 m/s
b) 300 m/s
c) 400 m/s
d) 500 m/s

*Answer:* a) 343 m/s

*4. Which law states that the ratio of the potential difference across a conductor to the current flowing through it is a constant?*
a) Ohm's Law
b) Newton's Law
c) Faraday's Law
d) Boyle's Law

*Answer:* a) Ohm's Law

*5. What is the unit of measurement for electric charge?*
a) Ampere
b) Coulomb
c) Volt
d) Ohm

*Answer:* b) Coulomb

*6. Which phenomenon is responsible for the twinkling of stars?*
a) Reflection
b) Refraction
c) Diffraction
d) Interference

*Answer:* b) Refraction

*7. What is the SI unit of pressure?*
a) Pascal
b) Newton
c) Joule
d) Watt

*Answer:* a) Pascal

*8. Which type of wave is sound wave?*
a) Electromagnetic wave
b) Mechanical wave
c) Transverse wave
d) Longitudinal wave

*Answer:* d) Longitudinal wave

*9. Who discovered the law of universal gravitation?*
a) Isaac Newton
b) Galileo Galilei
c) Albert Einstein
d) Johannes Kepler

*Answer:* a) Isaac Newton

*10. What is the unit of measurement for power?*
a) Joule
b) Watt
c) Newton
d) Pascal

*Answer:* b) Watt ¹ ²