CBSE Class 6 Answered
(a) What do you mean by 'shadow'? How is it formed?
(b) When a bird is on the ground, we are able to see its shadow; but when a bird is flying high up in the sky, we do not see any shadow. Explain both the cases.
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
(a) When an object is placed in front of a source of light, it produces a shade (dark area) behind it. The 'shade' cast by an object is called its 'shadow'. Shadows are formed when light is stopped by an object.
(b) When a bird is on the ground, we can see its shadow which is formed by sunlight. In this case, the bird obstructs the sunlight to form shadow on the nearby ground. When the same bird is flying high up in the air, even then the bird obstructs the sunlight falling on it but its shadow is not seen on the ground because the ground is very, very far below the bird.
Answered by | 04 Jun, 2014, 03:23: PM
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