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A small loudspeaker radiates `5 W` power, and sound intensity `2\ m` from speaker is `1\ Wm^-2`. If power of this speaker is doubled, intensity at a distance from speaker is
A small loudspeaker radiates `5 W` power, and sound intensity `2\ m` from speaker is `1\ Wm^-2`. If power of this speaker is doubled, intensity at a distance from speaker is
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Similar Question
A diffraction grating has 500 lines per millimetre and illuminated normally by monochromatic light of wavelength `600\ nm`. The total number of image seen on both side of the normal, including the central image is
A small loudspeaker radiates `5 W` power, and sound intensity `2\ m` from speaker is `1\ Wm^-2`. If power of this speaker is doubled, intensity at a distance from speaker is
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