EASY
Earn 100

Name the object which allow the complete passage of light through them.

(Choose from the following: Transparent/ Opaque/ Translucent).

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Important Questions on Light, Shadows and Reflections

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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
A magnet attracts :
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
Does the flame of gas stove emit light? Explain.
MEDIUM
Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
Which of the following objects allow light to pass through them?
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
Luminous bodies:
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
List a few examples of opaque objects?
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects

An example of natural source of light is _____.

(Choose from the following: sun/glowing bulb)

MEDIUM
Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
Give two examples of non-luminous objects.
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
Sometimes, you can see the Sun or the Moon behind the clouds. What can you say about the nature of clouds, regarding transmission of light?   
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
State one way of making a non-luminous object to emit light.
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
Objects which emit their own light are known as _____ objects.
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
Light refracts at the boundary of 
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
Coloured glass is an example of _____ material.
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects

The sun and stars are examples of _____ (luminous/ non-luminous) objects.

MEDIUM
Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
A table is a transparent object.
MEDIUM
Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects

Match the statements in Column A with those in Column B.

Column A Column B
1. An optical medium which has different composition at different points (a) 3×108 m/s
2. A body which does not allow light to pass through it. (b) Ray of light
3. The speed of light (c) Luminous 
4. The path along which light energy travels in a given direction. (d) Opaque
5. A body emitting light on its own. (e) Heterogeneous

 

EASY
Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects

Frosted glass is an example of _____ object.

(Choose from the following: transparent/ translucent)

EASY
Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects

Tables, cricket balls, and walls are examples of _____ objects.

(Choose from the following: opaque/translucent)

MEDIUM
Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects

Classify the following as transparent, translucent and opaque bodies:

Stone, wax, paper, reading glass, skin of drum, wood, smoke, milk, leather, blood and dense fog. 

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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
Suggest two ways of converting transparent plastic sheet into translucent sheet.
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Science>Physics>Light, Shadows and Reflections>Transparent, Opaque and translucent Objects
A window glass is: