If the angle between the pass axis of polariser and analyser is `45^(@)`, write the ratio of intensities of original light and the transmitted light after passing through analyser.

Explanation

To solve the problem, we will use Malus's Law, which states that when unpolarized light passes through a polarizer, the intensity of the transmitted light is given by:

\[ I = I_0 \cos^2 \theta \]

where:
- \( I \) is the transmitted intensity,
- \( I_0 \) is the original intensity,
- \( \theta \) is the angle between the light's polarization direction and the axis of the polarizer.
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