MHT CET · Physics · Rotational Motion
Two circular loops P and Q of radii 'r' and 'nr' are made respectively from a uniform wire. Moment of inertia of loop Q about its axis is 4 times that of loop P about its axis. The value of n is
- A \((2)^{-2 / 3}\)
- B \((2)^{2 / 3}\)
- C \(\sqrt{2}\)
- D \(2^{1 / 3}\)
Answer & Solution
Correct Answer
(B) \((2)^{2 / 3}\)
Step-by-step Solution
Detailed explanation
\(M = 2\pi R \lambda\) \(I = MR^2 = (2\pi R \lambda)R^2 = 2\pi \lambda R^3\)
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