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A whistle gives out `500\ Hz` moving away from a stationary observer in a direction toward and perpendicular to a flat well with a velocity of `1.5` metre per second. How many beats per second will be heard by observer ?
A whistle gives out `500\ Hz` moving away from a stationary observer in a direction toward and perpendicular to a flat well with a velocity of `1.5` metre per second. How many beats per second will be heard by observer ?
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Similar Question
A small loudspeaker radiates `5 W` power, and the sound intensity `2\ m` from the speaker is `1\ Wm^-2`. If the power of this speaker is doubled, the intensity at a distance from the speaker is
A whistle gives out `500\ Hz` moving away from a stationary observer in a direction toward and perpendicular to a flat well with a velocity of `1.5` metre per second. How many beats per second will be heard by observer ?
Two large horizontal parallel metal plates are `12\ m m` apart in vacuum and the upper is maintained at a positive potential relative to the lower so that the field strength between them is `10^5\ Vm^-1`. If an electron of charge `1.6**10^-19\ C` and mass `9.1**10^-31\ kg` is liberated from rest at the lower plate, What is its speed (m/s) on reaching the upper plate?
