Physics Questions and Answers for Competitive Exam
Physics GK Questions and Answers
Q.17 Dc current can be controlled by which one of the following components?
(A) Impedance
(B) Resistance
(C) Capacitance
(D) Inductance
Ans .B
Q.18 Mesons are found in
(A) Alpha -rays
(B) Laser beam
(C) X – rays
(D) Cosmic rays
Ans .D
Q.19 A moderator is used in nuclear reactors in order to
(A) increase the motoneurons
(B) decrease the motoneurons
(C) slow down the speed of neutrons
(D) Anthony S. D’Mello
Ans .C
Q.20 The wavelength of X-rays is of the order of
(A) 1 cm
(B) 1 m
(C) 10 micron
(D) 1 Angstrom
Ans .D
Q.21 In a sitar wire which one of the following types of vibration is produced?
(A) Progressive longitudinal
(B) Stationary longitudinal
(C) Progressive transverse
(D) Stationary transverse
Ans .A
Q.22 Which gas in the atmosphere saves us from the ultra violet rays of the sun?
(A) Nitrogen
(B) Oxygen
(C) Ozone
(D) Carbon Monoxide
Ans .C
Q.23 What is the study of plants called?
(A) Physics
(B) Chemistry
(C) Zoology
(D) Biology
Ans .D
Q.24 The three methods of science are observation, experimentation and
(A) Hypothesis
(B) Measurement
(C) Deduction
(D) inference
Ans .B
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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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