What happens to the interference pattern if the wavelength of light is increased

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Question: What happens to the interference pattern if the wavelength of light is increased?

Options:

Correct Answer: Fringe width increases

Solution:

Increasing the wavelength increases the fringe width, as fringe width is directly proportional to the wavelength.

What happens to the interference pattern if the wavelength of light is increased?

What happens to the interference pattern if the wavelength of light is increased?

Step 1: Understand what an interference pattern is. It is a pattern created when light waves overlap and combine.
Step 2: Know that the wavelength of light is the distance between two peaks of the light wave.
Step 3: Realize that fringe width is the distance between the bright or dark spots in the interference pattern.
Step 4: Learn that fringe width is directly related to the wavelength of the light used.
Step 5: If you increase the wavelength of the light, the distance between the bright and dark spots (fringe width) also increases.
Step 6: Therefore, when the wavelength of light is increased, the interference pattern spreads out more.

Interference Pattern – The pattern created by the superposition of waves, typically seen in experiments like the double-slit experiment.
Fringe Width – The distance between adjacent bright or dark fringes in an interference pattern, which is affected by the wavelength of light.
Wavelength – The distance between successive peaks of a wave, which influences the characteristics of the interference pattern.