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

Show Answer

 Q.18 Mesons are found in  

(A) Alpha -rays
 (B) Laser beam
 (C) X – rays
 (D) Cosmic rays

Show Answer

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

Show Answer

Q.20 The wavelength of X-rays is of the order of  

(A) 1 cm
 (B) 1 m
 (C) 10 micron
 (D) 1 Angstrom

Show Answer

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

Show Answer

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

Show Answer

Q.23 What is the study of plants called?  

(A) Physics
 (B) Chemistry
 (C) Zoology
 (D) Biology

Show Answer

Q.24 The three methods of science are observation, experimentation and  

(A) Hypothesis
 (B) Measurement
 (C) Deduction
 (D) inference

Show Answer

If you have any problem or doubt regarding Physics Questions and Answers for Competitive Exams, you can ask me in the comment section. To more practice for Physics General Knowledge Questions, Visit next page.