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प्रश्न
On a sunny day, does a bird or an aeroplane flying high in the sky cast its shadow on the ground? Under what circumstances can we see their shadow on the ground?
उत्तर
Even on a sunny day, a bird or an aeroplane flying high in the sky does not cast its shadow on the ground.
We can see their shadow on the ground only if they are flying very close to the ground. In this case, ground acts as screen.
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संबंधित प्रश्न
Fill in the blank.
The darkest portion of a shadow is called the ................
Fill in the blank.
The less dark portion of a shadow is called the .................
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In the following diagram, draw rays to form umbra on the screen.
State the conditions when only the penumbra of an opaque object is obtained on the screen.
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Answer the following.
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What is shadow?
How does the colour of an opaque object affect the colour of the shadow?
What do we need in order to see a shadow?
What are the parts of shadow?
The ______ is the darkest part of a shadow.
The lighter shade of shadow is the ______.
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