Physics, asked by akshu23, 1 year ago

pls this ques pls fast

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Answered by HridayAg0102
1
Heya Frnd. ........☺

We know that

R = ƒ * l /A

Here , ƒ = 1

We also know that the no. of times lengtg is increased , the same no. of times the area decrease,

∴ l * 2 = A/2.................ANS ⭐(OPTION A)⭐

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