EASY
Earn 100

Explain about penumbra.

Important Questions on Light

MEDIUM
Science>Physics>Light>Shadow, Umbra, and Penumbra
Differentiate between umbra and penumbra region of a shadow.
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
Choose the answer from the bracket to fill the blank.
The sun rays fall _____ on the earth during noon time. (directly/slantly). 
MEDIUM
Science>Physics>Light>Shadow, Umbra, and Penumbra
Shadows are formed when light is blocked by:
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
A shadow shows details of the object.
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
Shadow of an object gives an idea about _____.
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
State two differences in the pinhole camera images and shadows.
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
A dark patch formed behind an opaque material is called a/an _______.
MEDIUM
Science>Physics>Light>Shadow, Umbra, and Penumbra
 The dark spot formed by a translucent or opaque object when it blocks light _____.
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
Shadows are formed because 
MEDIUM
Science>Physics>Light>Shadow, Umbra, and Penumbra
Shadows are always inverted.
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
The earth's shadow has five parts.
MEDIUM
Science>Physics>Light>Shadow, Umbra, and Penumbra
Can you think of creating a shape that would give a circular shadow if held in one way and a rectangular shadow if held in another way?
MEDIUM
Science>Physics>Light>Shadow, Umbra, and Penumbra

What conclusion do you get from the fact that when an object is placed in the path of light, a shadow is formed behind the object?

EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
Which of these materials would form a shadow?
HARD
Science>Physics>Light>Shadow, Umbra, and Penumbra
List down the features of a shadow.
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
Name the parts of the shadow formed by an extended source of light. (umbra and antumbra / umbra and penumbra)
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
A shadow is formed when:
MEDIUM
Science>Physics>Light>Shadow, Umbra, and Penumbra
If the object is red in colour, the shadow will also be red.
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra
_____ (Opaque/Transparent) objects form a dark shadow.
EASY
Science>Physics>Light>Shadow, Umbra, and Penumbra

Study the diagram given alongside. Which of the following will be seen on the screen?

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