Light

Total Questions: 8

1 - The luminous body emits -----:
A ) Light ✅
B ) Water
C ) Energy
D ) None of these

2 - Light travels at------miles per second?
A ) 186,000 ✅
B ) 140,000
C ) 120,000
D ) 136,000

3 - The speed of light is --------:
A ) 280,000 km/s
B ) 300,000 km/s ✅
C ) 320,000 km/s
D ) None of these

4 - Objects like glass through which things can be seen clearly are called --------:
A ) Transparent objects ✅
B ) Miscible objects
C ) Translation objects
D ) Opeque objects

5 - When light enter from rare to dense medium it bends toward the normal line it is called -----:
A ) Refraction of light ✅
B ) Reflection of light
C ) Diffraction of light
D ) Absorption of light

6 - Which of the following uses a source of light for projection?
A ) Perspective ✅
B ) Conventional
C ) Non-prespective
D ) None of these

7 - In which medium does light travel the fastest?
A ) Vacuum ✅
B ) Glass
C ) Water
D ) Air

8 - Which of the following is the main cause of the rainbow formation?
A ) Refraction ✅
B ) Reflection
C ) Diffraction
D ) Dispersion
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