Physics : General Knowledge Questions and Answers

Physics questions and answers are essential for all competitive exams. In this section, you will find many types of physics questions and answers. Practice these questions and answers that will help you crack any competitive exam like SSC, IBPS, PO, RBI, PSC, RAIL, PSU, and many more exams.

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Physics Questions and Answers

Q1. Which of the following electromagnetic waves has minimum wavelength?

[A] X-rays

[B] Infrared

[C] Alpha

[D] Gamma

Q2. Which Color has the Longest Wavelength?

[A] White

[B] Red

[C] Yellow

[D] Violet

Q3. The audible range of sound for an average adult human being is ___________.

[A] 2 Hz – 2000 Hz

[B] 2 Hz – 20000 Hz

[C] 20 Hz – 20000 Hz

[D] 20 Hz – 2000 Hz

Q4. Sound following a flash of lightning is called

[A] Bolting

[B] Thunder

[C] Cloud clash

[D] Stoning

Q5. What is the standard room temperature in Kelvin?

[A] 273 K

[B] 98 K

[C] 198 K

[D] 373 K  

Q6. What does a light year measure?

[A] Power

[B] Velocity

[C] Distance

[D] Energy

Q7. The product of mass and velocity is called:

[A] Kinetic energy

[B] Force

[C] Potential energy

[D] Momentum

Q8. A periscope works by the principle of

[A] Reflection & Refraction

[B] Diffraction

[C] Total internal reflection

[D] Refraction

Q9. The most suitable unit for expressing nuclear radius is

[A] nanometre

[B] angstrom

[C] micro

[D] fermi

Q10. Which liquid is the most viscous?

[A] Milk

[B] Water

[C] Oil

[D] Diesel