MEDIUM
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By which light source does the penumbra not form?

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Important Questions on Light, Shadows and Reflections

EASY
Images are also known as shadows.
MEDIUM
The shadow formed due to the sun is _____ (longer/shorter) at noon.
MEDIUM
Why is the shadow of the Sun shortest at noon?
MEDIUM
How can we change the size of shadows for the same object?
HARD
List down the features of a shadow.
MEDIUM
Differentiate between an image and a shadow.
EASY
The shadow of a coloured object is always black in colour.
MEDIUM
When is the length of the shadow formed by the Sun shortest?
HARD
What does the size of a shadow depend on?
MEDIUM
What are the characteristics of a shadow?
MEDIUM
When is the size of a shadow formed by the Sun shortest?
MEDIUM
If the object is red in colour, the shadow will also be red.
MEDIUM
How does the size of the shadow of an object change with the change in the position of the Sun in the sky?
 
EASY
How is the shape and size of a shadow affected, if coloured light is used instead of white light?
EASY
A shadow is formed on the same side of the source of light.
EASY
The shape of a shadow depends on 
MEDIUM
State three conditions for the formation of a shadow.
MEDIUM
 The dark spot formed by a translucent or opaque object when it blocks light _____.
MEDIUM
_____ is formed when an object blocks the path of light.