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School Physics Quiz : Light


Answer the following questions based on light.

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Multiple choice

Your Performance  

1.

_______ is an instrument used to compare the luminous intensities of two sources of light.

  Camera

  Photometer

  Electroscope

  Half-n-half Clue
 

2.

_______ 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 lunar eclipse

  An annular eclipse

  A helical eclipse

  Half-n-half Clue
 

3.

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

  area

  luminous intensity

  distance

  Half-n-half Clue
 

4.

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

  opaque

  translucent

  transparent

  Half-n-half Clue
 

5.

Materials through which light cannot pass are said to be

  translucent

  transparent

  opaque

  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

  Joule

  Watt

  Lux

  Half-n-half Clue
 

7.

The SI unit of luminous intensity is _______.

  Calorie

  Candela

  Coulomb

  Half-n-half Clue
 


 
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