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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.

  A helical eclipse

  An annular eclipse

  A lunar eclipse

  Half-n-half Clue
 

2.

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

  distance

  luminous intensity

  area

  Half-n-half Clue
 

3.

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

  convergent

  divergent

  parallel

  Half-n-half Clue
 

4.

Materials through which light cannot pass are said to be

  translucent

  opaque

  transparent

  Half-n-half Clue
 

5.

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

  opaque

  transparent

  translucent

  Half-n-half Clue
 

6.

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

  Watt

  Joule

  Lux

  Half-n-half Clue
 

7.

Materials that allow light to pass but through which objects cannot be clearly seen are said to be

  opaque

  transparent

  translucent

  Half-n-half Clue
 


 
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