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Physics-

General

Easy

Question

Gravitational field at the centre of a semicircle formed by a thin wire AB of mass m and length $l$ is :

$\frac{G m}{l^{2}} along + x axis$
$\frac{G m}{π l^{2}} along + y axis$
$\frac{2 π G m}{l^{2}} along + x axis$
$\frac{2 π G m}{l^{2}} along + y axis$

The correct answer is: $fraction numerator 2 pi G m over denominator l to the power of 2 end exponent end fraction text along end text plus y text axis end text$

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