Quiz on Physics Set 168

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Quiz on Physics Set 168 :

Question 1 : 

Parabolic mirors are used in
A. Car headlights
B. Dentists mirors
C. Shaving mirors
D. Driving mirors

View Answer
Correct Ans: Option A

Question 2 : 

Which of the following one of the following instruments is used to study dispersion of light -
A. Photometer
B. Telescope
C. Spectrometer
D. Microscope

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Correct Ans: Option C

Question 3 : 

The function of ball bearings in a wheel is:
A. to increase friction
B. just for convenience
C. to convert static friction into kinetic friction
D. to convert kinetic friction into rolling friction

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Correct Ans: Option D

Question 4 : 

  A cyclist moves due east at 8 km/h for half an hour and then turns exactly southwards for another half an hour at 6 km/h. The average velocity of the cyclist for the period is
A. 5 km/h
B. 7 km/h
C. 10 km/h
D. 15 km/h

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Correct Ans: Option A

Question 5 : 

A simple microscope consists of
A. a short focus concave lens
B. a long focus concave lens
C. a short focus convex lens
D. a long focus convex lens

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Correct Ans: Option C

Question 6 : 

Which among the following principle is used by Bats?
A. RADAR (Radio Detective & Ranging)
B. SONAR (Sound Navigation & Ranging)
C. Law of reflection
D. Doppler effect

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Correct Ans: Option B

Question 7 : 

Water at approx 4 degree centigrade has _____
A. Minimum density
B. Maximum density
C. Maximum Volume
D. None of the above

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Correct Ans: Option B

Question 8 : 

According to special theory of relativity the mass of a particle
A. decreases with rise in velocity
B. is independent of its velocity
C. increases with rise in velocity with respect to an observer
D. decreases with fall in velocity

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Correct Ans: Option C

Question 9 : 

The material used in the fabrication of a transistor is
A. Silver
B. Aluminium
C. Silicon
D. Copper

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Correct Ans: Option C

Question 10 : 

When a piece of pure silicon is doped with aluminium then
A. the doped silicon piece will become n-type
B. the doped silicon piece will become p-type
C. the conductivity of the doped silicon Piece will remain the same
D. the resistivity of the doped silicon piece will increase

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Correct Ans: Option B

Quiz Summary

Here the correct answers of every question in this quiz.

Q.1 [A],     Q.2 [C],     Q.3 [D],     Q.4 [A],     Q.5 [C],     Q.6 [B],     Q.7 [B],     Q.8 [C],     Q.9 [C],     Q.10 [B],    


Total Questions: 10
Your score:
Subject: Physics
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