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School Physics Quiz : Light


Answer the following questions based on light.

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Multiple choice

Your Performance  

1.

A _______ beam is one whose rays remain the same distance apart.

  parallel

  convergent

  divergent

  Half-n-half Clue
 

2.

Light always travels in straight lines.

  True

  False

 

3.

Bodies that radiate light are called

  non-luminous

  luminous

  opaque

  Half-n-half Clue
 

4.

A lunar eclipse occurs when the earth comes between the sun and the moon.

  True

  False

 

5.

The partly lighted area of a shadow on the periphery of the totally shaded portion is called the _______

  eclipse

  penumbra

  umbra

  Half-n-half Clue
 

6.

A _______ eclipse occurs when the moon comes between the sun and the earth.

  lunar

  solar

 

7.

If the power of a light source is measured in candelas and distance in meters, then the illuminance of the surface is in

  Lux

  Joule

  Watt

  Half-n-half Clue
 


 
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