Assertion: When an opaque object is placed in the path of light, it casts a shadow on the screen placed behind it.

Reason: Light travels along straight lines and cannot bend around corners.

Which of the following is the correct choice?

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Both assertion and reason are correct, and the reason is the correct explanation of the assertion.

Both assertion and reason are correct, and the reason is not the correct explanation of the assertion.

The assertion is correct, but the reason is incorrect.

The assertion is incorrect, but the reason is correct.

answer is A.

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Detailed Solution

Both assertion and reason are correct, and the reason is the correct explanation of the assertion.
Assertion: When an opaque object enters the path of a light source, it blocks the light from striking it. As a result, a region known as a shadow forms behind the object where there is less light than in the area around it.
Reason: Light moves in a straight line for this reason. Placing an object in the path of light can show that it moves in a straight line. Light travels in a straight line if the object is opaque and casts a dark shadow. It provides a precise explanation of the phenomenon referred to in the assertion.

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