Physics GK Questions
Physics GK Questions and Answers
Q.19 Light year is a unit of
(A) time
(B) distance
(C) light
(D) intensity of light
Ans . B
Q.20 Mirage is due to
(A) unequal heating of different parts of the atmosphere
(B) magnetic disturbances in the atmosphere
(C) depletion of ozone layer in the atmosphere
(D) equal heating of different parts of the atmosphere
Ans . A
Q.21 Light from the Sun reaches us in nearly
(A) 2 minutes
(B) 4 minutes
(C) 8 minutes
(D) 16 minutes
Ans . C
Q.22 Stars appears to move from east to west because
(A) all stars move from east to west
(B) the earth rotates from west to east
(C) the earth rotates from east to west
(D) the background of the stars moves from west to east
Ans . B
Q.23 Pa(Pascal) is the unit for
(A) thrust
(B) pressure
(C) frequency
(D) conductivity
Ans . B
Q.24 Planets do not twinkle because
(A) they emit light of a constant intensity
(B) their distance from the earth does not change with time
(C) they are very far away from the earth resulting in decrease in intensity of light
(D) they are nearer to earth and hence we receive a greater amount of light and, therefore minor variations in the intensity are not noticeable
Ans . D
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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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