MCQ
A shell having a hole of radius $r$ is dipped in water. It holds the water upto a depth of $h$ then the value of $r$ is
- ✓$r = \frac{{2T}}{{hdg}}$
- B$r = \frac{T}{{hdg}}$
- C$r = \frac{{Tg}}{{hd}}$
- DNone of these
✓
Answer
Correct option: A.
$r = \frac{{2T}}{{hdg}}$
a
(a) $\frac{{2T}}{r} = hdg \Rightarrow r = \frac{{2T}}{{hdg}}$
(a) $\frac{{2T}}{r} = hdg \Rightarrow r = \frac{{2T}}{{hdg}}$
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