Physics question answer : In this article, we provided the latest Physics Questions and Answers 2021. The Physics question and answers are mostly asked in all competitive exams. Eg:- Union Public Service Commission, State Public Service Commission, Staff Selection Commission, Railway Recruitment Board, etc. In this, questions related to the classification are asked.
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Question and answer about physics
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General physics questions and answers pdf
1. The unit of pressure is –
(A) Kg / cm2
(B) Kg / cm
(C) Kg / mm
(D) Nm
2. The sunlight from sun to Earth reaches in –
(A) 5 minutes
(B) 6 minutes
(C) 8 minutes
(D) 10 minutes
3. Which one of the following is an scalar quantity?
(A) Force
(B) Pressure
(C) Velocity
(D) Acceleration
4. Which one of the following quantities does not have the unit?
(A) Stress
(B) force
(C) Strain
(D) Pressure
5. Sound wane in air are –
(A) Transverse
(B) Longitudinal
(C) Electromagnetic
(D) Polarised
6. What is the unit for specific resistance?
(A) Ohm / cm
(B) Ohm – cm2
(C) Ohm – cm
(D) Ohm
7. Lux is the SI unit of –
(A) Intensity of illumination
(B) Luminous efficiency
(C) Luminous flux
(D) Luminous intensity
8. Force of gravity is least at –
(A) The equator
(B) The pole
(C) Between equator and pole
(D) None of these
9. I. Unit of universal gas constant is –
(A) Cal / c
(B) J / Mol – k
(C) J / Mol
(D) J / Kg
10. The number of wanes contained in unit length of medium is called.
(A) Elastic wave
(B) Wave pulse
(C) Wave number
(D) Electromagnetic wave
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