Question

ratio of intensities of two light wave is given by 4: 1 the ratio of the amplitude of the waves is

Answer 1

A² = I ,
so the ratio of amplitude is 2:1

Answer 2

The ratio of the amplitude of the waves is 2:1.

Explanation:

The ratio of intensities of two light wave is given by 4: 1. We need to find the amplitude of the waves. We know that the intensity of a wave is directly proportional to the square of its amplitude as :

$I\propto A^2$

A is the amplitude of waves

$\dfrac{A_1}{A_2}=\sqrt{\dfrac{I_1}{I_2}}$

$\dfrac{A_1}{A_2}=\sqrt{\dfrac{4}{1}}$

$\dfrac{A_1}{A_2}=\dfrac{2}{1}$

So, the ratio of the amplitude of the waves is 2:1.

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Ratio of intensities of two light wave is given by 4: 1 the ratio of the amplitude of the waves is ?

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