Statement I: Fringe width of red light is greater than the fringe width of violet light. Statement II: Fringe width is directly proportional to the wavelength of light used. Choose the correct option.
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Question

Statement I: Fringe width of red light is greater than the fringe width of violet light. Statement II: Fringe width is directly proportional to the wavelength of light used. Choose the correct option.

G1 Physics · Accepted Answer

In YDSE, β=λD/d. Therefore β∝λ. Red light has a larger wavelength than violet light, so both statements are correct.