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Last Updated On 16-03-2023 - By Jeesha Sara

In a Fraunhofer diffraction experiment at a single slit using a light of wavelength 400 nm, the first minimum is formed at an angle of   The direction  of the first secondary maximum is given by

a)

b)

c)

d)


Question ID - 150190 :-

In a Fraunhofer diffraction experiment at a single slit using a light of wavelength 400 nm, the first minimum is formed at an angle of   The direction  of the first secondary maximum is given by

a)

b)

c)

d)

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

For first diffraction minimum

For first secondary maximum

Or

Or



Next Question :

In double slit experiment, the angular width of the fringes is  for the sodium light . In Order to increase the angular width of the fringes by 10%, the necessary change in the wavelength is

a)

Increase of

b)

Decrease of

c)

Increase of

d)

Zero


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