SATHEE: Optics Question 1100

Optics Question 1100

Question: In Young’s double slit experiment, 62 fringes are seen in visible region for sodium light of wavelength 5893 Å. If violet light of wavelength 4358 Å is used in place of sodium light, then number of fringes seen will be

[RPET 1997]

Options:

A) 54

B) 64

C) 74

D) 84

Show Answer

Answer:

Correct Answer: D

Solution:

$n_{1} λ_{1} = n_{2} λ_{2}$

$\Rightarrow 62 \times 5893 = n_{2} \times 4358$

$\Rightarrow n_{2} = 84.$

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Optics Question 1100

Question: In Young’s double slit experiment, 62 fringes are seen in visible region for sodium light of wavelength 5893 Å. If violet light of wavelength 4358 Å is used in place of sodium light, then number of fringes seen will be

Options:

Answer:

Solution:

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