A constant power is supplied to a rotating disc. The relationship between the angular velocity ω of the disc and number of rotations (n) made by the disc is governed by

Question

A constant power is supplied to a rotating disc. The relationship between the angular velocity ω of the disc and number of rotations (n) made by the disc is governed by (A) ω propto n(1/3) (B) ω propto n(2/3) (C) ω propto n(3/2) (D) ω propto n2

Tardigrade Admin · Accepted Answer

Correct answer is (a) ω propto n(1/3)

Q. A constant power is supplied to a rotating disc. The relationship between the angular velocity $ω$ of the disc and number of rotations (n) made by the disc is governed by

$ω \propto n^{\frac{1}{3}}$

$ω \propto n^{\frac{2}{3}}$

$ω \propto n^{\frac{3}{2}}$

$ω \propto n^{2}$

Correct answer is (a) $ω \propto n^{\frac{1}{3}}$

Q. A constant power is supplied to a rotating disc. The relationship between the angular velocity ω of the disc and number of rotations (n) made by the disc is governed by

ω∝n31​

ω∝n32​

ω∝n23​

ω∝n2