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Physics XII Notes for Physics Notes

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Short Questions

1. Why is diffraction not noticeable in daily life?
For diffraction , the separation between two slit should be small as the wavelength of light is small. So to make such small distance it is impossible in daily life.

2. Diffraction pattern are not observed from a wide slit illuminated by monochromatic light. Why?
We have
β=λD/d
If d is wide is small , So no diffraction pattern are observed .

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