Assertion :Windowpanes of old buildings becomes thicker at the bottom than at the top. Reason: Glass is an extremely viscous liquid.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
Old windows are sometimes found to be thicker at bottom than at top is often offered as supporting evidence has the view that glass flows over a fire-scale of centuries.
$R e a s o n - ------- - :$ Glass is ann amarphous solids/super cooled liquid having high viscocity.

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