What is the effect of increasing the wavelength of light on the diffraction patt

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Question: What is the effect of increasing the wavelength of light on the diffraction pattern? (2019)

Options:

Correct Answer: Increases fringe width

Exam Year: 2019

Solution:

Increasing the wavelength of light increases the fringe width in a diffraction pattern.

What is the effect of increasing the wavelength of light on the diffraction pattern? (2019)

What is the effect of increasing the wavelength of light on the diffraction pattern? (2019)

Step 1: Understand what a diffraction pattern is. It is a pattern of light and dark bands created when light passes through a narrow opening or around an obstacle.
Step 2: Know that the wavelength of light is the distance between two peaks of the light wave.
Step 3: Realize that when you increase the wavelength of light, the distance between the peaks becomes larger.
Step 4: Understand that a larger wavelength means that the light spreads out more when it diffracts.
Step 5: Recognize that this spreading out causes the bright and dark bands (fringes) in the diffraction pattern to be farther apart.
Step 6: Conclude that increasing the wavelength of light increases the fringe width in the diffraction pattern.

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