Quiz on Physics Set 29

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Quiz on Physics Set 29 :

Question 1 : 

When light enters a closed room through a small hole in the door, the image of an outside building appears as inverted on the opposite wall. This is because
A. The hole acts as a convex lens
B. The hole acts as a concave lens
C. Of rectilinear propagation of light
D. Light takes curvature at the edges of the hole

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Correct Ans: Option D

Question 2 : 

An energy source will supply a constant current into the load if its internal resistance is
A. Very large as compared to the load resistance
B. Non-zero but less than the resistance of the load
C. Zero
D. Equal to the resistance of the load

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Correct Ans: Option C

Question 3 : 

Consider the following statements:
1.The apparent weight of a body floating in a liquid is zero.
2.The weight of the liquid displaced by the immersed part of the body equals its weight. 
Which of the above statements is/are true?
A. 1 only
B. 2 only
C. Both 1 and 2
D. Neither 1 nor 2

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Correct Ans: Option D

Question 4 : 

What apparatus is used to locate a submerged object?
A. Radar
B. Sonar
C. Quasar
D. Pulsar

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Correct Ans: Option B

Question 5 : 

The pitch of sound depends on its
A. Frequency
B. Intensity
C. Velocity
D. Amplitude

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Correct Ans: Option A

Question 6 : 

Speed of sound is the greatest in :
A. Water
B. Air
C. Glass
D. Glycerine

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Correct Ans: Option C

Question 7 : 

Which is best used as a sound absorbing material in partition walls ?
A. Stone chips
B. Steel
C. Glass - wool
D. Glass pieces

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Correct Ans: Option C

Question 8 : 

A decibel is
A. A musical instrument
B. The wavelength of noise
C. A musical note
D. A measure of sound level

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Correct Ans: Option D

Question 9 : 

Sound following a flash of lightning is called
A. Stoning
B. Bolting
C. Thunder
D. Cloud clash

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Correct Ans: Option C

Question 10 : 

Acceptable noise level for human ear
A. > 85 db
B. = 85 db
C. < 85 db
D. None of the above

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Correct Ans: Option C

Quiz Summary

Here the correct answers of every question in this quiz.

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


Total Questions: 10
Your score:
Subject: Physics
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