Assertion: When we rub amber with fur, it can attract small hair strands.
Reason: Charge on the hair is opposite as that on the amber.

Both assertion and reason are true and the reason is the correct explanation for the assertion.

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Both assertion and reason are true but the reason is not the correct explanation for the assertion.

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Assertion is a true statement but the reason is false.

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Both assertion and reason are false statements.

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Solution

The correct option is A Both assertion and reason are true and the reason is the correct explanation for the assertion.
According to the properties of charges, two objects having opposite charges attract each other.
On the other hand, two objects having similar charges repel each other.
When we rub amber with fur, it acquires some charge. This charge is opposite to the charge present on the hair strands. They attract each other due to opposite charges.

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Assertion: When we rub amber with fur, it can attract small hair strands. Reason: Charge on the hair is opposite as that on the amber.

Assertion: When we rub amber with fur, it can attract small hair strands.
Reason: Charge on the hair is opposite as that on the amber.