MCQOPTIONS
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MCQOPTIONS
| 1. |
The amplitude of a progressive wave is A and angular frequency is ω then energy density of the wave is (ρ is density of medium) |
| A. | \(\dfrac{1}{2} \rho \omega^2 A^2 \) |
| B. | \(\dfrac{1}{4} \rho \omega^2 A^2 \) |
| C. | \(\dfrac{1}{4} \rho^2 \omega^2 A\) |
| D. | \(\dfrac{1}{2} \rho^2 \omega^2 A\) |
| Answer» B. \(\dfrac{1}{4} \rho \omega^2 A^2 \) | |