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प्रश्न
The body is rotating with uniform angular velocity (w) having rotational kinetic energy (E). Its angular momentum (L) is: ...............
a) `(2E)/ω`
b) `E^2/ω`
c) `E/ω^2`
d) `E/(2ω)`
उत्तर
a) E = 1/2 Iω2
∴2E = (Iω)ω
∴ `(2E)/ω = L`
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