Question

In YDSE total 211 Fringes can be seen on screen in vaccum . The setup immersed in water then number of fringes will be ?? Explain​

Answer 1

Answer:

281 fringes can be observed

Explanation:

The reason being as ydse is immersed in water, since speed of sound in water is less than that of air, wavelength will also decrease given that frequency remains same

So fringe width also decreases as a result

Refer the attachement for detailed solution!!

P.S excuse me for poor handwriting ;)

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