Physics General Knowledge Questions: Physics GK Question for Competitive Exams
Q. Supersonic plane fly with the speed
A.less than the speed of sound
B.of sound
C.greater than the speed of sound
D.of light
Ans .C
Q. Rainbow is due to
A.absorption of sunlight in minute water droplets
B.diffusion of sunlight through water droplets
C.ionisation of water deposits
D.refraction and reflection of sunlight by water droplets
Ans .D
Q. Liquid metal is
A. zinc
B. saline
C. lead
D. mercury
Ans .D
Q. Sound travels fast through
A. water
B. air
C. steel
D. vacuum
Ans .C
Q. The lens used to rectify long sight is
A. convex lens
B. concave lens
C. plano concave lens
D. plano convex lens
Ans .A
Q. When milk is churned cream gets separated due to
A. gravitational force
B. frictional force
C. centripetal force
D. centrifugal force
Ans .D
Q. We cannot see during a fog because of
A. refraction
B. internal reflection
C. scattering of light
D. reflection of light
Ans .C
Q. Who is the father of discoveries?
A. Edison
B. Pascal
C. Einstein
D. Archimedes
Ans .D
Q. X–rays travel with the velocity of
A. positive rays
B. sound
C. light
D. alpha rays
Ans .C
Q. Power of a lens is measured in
A. ultrasonic unit
B. decibel
C. dioptre
D. magnification
Ans .C
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Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
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