Write the following statements using symbol of variation.
(1) The wavelength of sound (l) and its frequency (f) are in inverse variation.
(2) The intensity (I) of light varies inversely with the square of the distance (d) of a screen from the lamp.

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Solution

(1) The wavelength of sound (l) and its frequency (f) are in inverse variation.

This statement can be written using symbol of variation as

$l \propto \frac{1}{f}$

(2) The intensity (I) of light varies inversely with the square of the distance (d) of a screen from the lamp.

This statement can be written using symbol of variation as

$I \propto \frac{1}{d^{2}}$

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Write the following statements using symbol of variation. (1) The wavelength of sound (l) and its frequency (f) are in inverse variation. (2) The intensity (I) of light varies inversely with the square of the distance (d) of a screen from the lamp.

Write the following statements using symbol of variation.
(1) The wavelength of sound (l) and its frequency (f) are in inverse variation.
(2) The intensity (I) of light varies inversely with the square of the distance (d) of a screen from the lamp.