If the wavelength of light used in a double-slit experiment is increased, what h

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Question: If the wavelength of light used in a double-slit experiment is increased, what happens to the position of the interference fringes?

Options:

Correct Answer: Fringes move further apart

Solution:

Increasing the wavelength increases the fringe width, causing the fringes to move further apart.

If the wavelength of light used in a double-slit experiment is increased, what happens to the position of the interference fringes?

If the wavelength of light used in a double-slit experiment is increased, what happens to the position of the interference fringes?

Step 1: Understand that in a double-slit experiment, light passes through two slits and creates a pattern of bright and dark lines called interference fringes.
Step 2: Know that the position of these fringes depends on the wavelength of the light used.
Step 3: Recognize that if the wavelength of the light is increased, it means the light waves are longer.
Step 4: Realize that longer wavelengths cause the fringes to spread out more.
Step 5: Conclude that increasing the wavelength results in the interference fringes moving further apart from each other.

Interference Patterns – The behavior of light waves when they overlap, leading to constructive and destructive interference.
Wavelength and Fringe Width – The relationship between the wavelength of light and the spacing of interference fringes in a double-slit experiment.