The two slits in Young's double slit experiment are separated by a distance of 0.03 mm. An interference pattern is produced on a screen 1.5 m away. The `3^(rd)` bright fringe is at a distance of 1 cm from the central maximum. Calculate the wavelength of light used.

Explanation

To solve the problem, we will use the formula for the position of bright fringes in Young's double slit experiment:

\[ y_n = \frac{n \lambda D}{d} \]

Where:
- \( y_n \) is the distance of the nth bright fringe from the central maximum,
- \( n \) is the order of the bright fringe (in this case, \( n = 3 \)),
- \( \lambda \) is the wavelength of the light,
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