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Physics · LAWS OF MOTION
हिन्दीA small heavy bob of mass \( m \) is suspended symmetrically in equilibrium by two light strings attached to a flat horizontal ceiling. Each string makes an angle of \( 45^\circ \) with the horizontal ceiling. The tension in each string is:
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Correct answer · Option B
\( \frac{mg}{\sqrt{2}} \)
Explanation
Sum of vertical components of tension: \( 2 T \sin 45^\circ = mg \Rightarrow 2 T (\frac{1}{\sqrt{2}}) = mg \Rightarrow \sqrt{2} T = mg \Rightarrow T = \frac{mg}{\sqrt{2}} \).
