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School Physics Quiz : Light


Answer the following questions based on light.

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Multiple choice

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1.

_______ is a type of solar eclipse where the moon's shadow covers the sun's center and has a ring of sunlight around it.

  An annular eclipse

  A lunar eclipse

  A helical eclipse

  Half-n-half Clue
 

2.

The solar eclipse occurs more frequently than the lunar eclipse.

  True

  False

 

3.

Materials through which objects can be seen clearly are said to be

  transparent

  opaque

  translucent

  Half-n-half Clue
 

4.

The distance between a light source and a screen is doubled. The illuminance of the screen becomes

  one-fourth its original value

  four times its original value

  half its original value

  twice its original value

  Half-n-half Clue
 

5.

The SI unit of luminous intensity is _______.

  Coulomb

  Candela

  Calorie

  Half-n-half Clue
 

6.

Illuminance of a surface is proportional to the power of the light source and inversely proportional to the square of the _______.

  luminous intensity

  distance

  area

  Half-n-half Clue
 

7.

Bodies that radiate light are called

  luminous

  opaque

  non-luminous

  Half-n-half Clue
 


 
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