Quiz on Physics Set 23

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Quiz on Physics Set 23 :

Question 1 : 

Light beam which is highly directional is called:
A. Eraser
B. Grazer
C. Maser
D. Laser

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Correct Ans: Option D

Question 2 : 

Speed of light is maximum in ________
A. Vacuum
B. Solids
C. Liquids
D. Gases

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Correct Ans: Option A

Question 3 : 

Light travels in a straight line (rectilinear propagation of light). This statement does hold if the medium of travel for light is
A. Of variable refractive index
B. Made up of slabs of different refractive indices
C. Homogeneous and transparent
D. Inhomogeneous and transparent

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Correct Ans: Option C

Question 4 : 

The speed of light will be minimum while passing through
A. Water
B. Vaccum
C. Air
D. Glass

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Correct Ans: Option D

Question 5 : 

Who measured the velocity of light first ?
A. Galileo
B. Newton
C. Romer
D. Einstein

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Correct Ans: Option C

Question 6 : 

Light houses are places with powerful lights to :
A. Guide and resolve traffic jams in crowded metro-cities during nights
B. Guide and help large crowds at religious gathering during nights
C. Indicate to the incoming warships, the location of a harbour during night
D. Guide and warn the ships coming from different directions in the ocean

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Correct Ans: Option D

Question 7 : 

It is dangerous to observe Solar eclipse with naked eyes because
A. Infrared radiations from sun burn our retina
B. Ultraviolet radiations from Sun burn our retina
C. All radiations from sun initiate chemical reactions in eyes
D. Cosmic rays reach eyes more during the eclipse

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Correct Ans: Option B

Question 8 : 

Formation of shadows can be explained by
A. Rectilinear propagation of light
B. Reflection
C. Refraction
D. Total internal reflection

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Correct Ans: Option A

Question 9 : 

The locomotion of insects to the source of light is called :
A. Phototropic
B. Hydrotropic
C. Phototactic
D. Thermotactic

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Correct Ans: Option A

Question 10 : 

Which is an example of Phototropism?
A. Roots of a plant following water
B. Plant bending toward the light
C. Roots growing into the soil
D. A venus flytrap capturing a fly

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Correct Ans: Option B

Quiz Summary

Here the correct answers of every question in this quiz.

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


Total Questions: 10
Your score:
Subject: Physics
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