What is the effect of increasing the wavelength of light in a diffraction gratin

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Question: What is the effect of increasing the wavelength of light in a diffraction grating experiment?

Options:

Correct Answer: Fringe spacing increases

Solution:

Increasing the wavelength of light increases the fringe spacing in a diffraction grating experiment.

What is the effect of increasing the wavelength of light in a diffraction grating experiment?

What is the effect of increasing the wavelength of light in a diffraction grating experiment?

Step 1: Understand what a diffraction grating is. It is a tool that spreads light into its different colors (wavelengths).
Step 2: Know that light can have different wavelengths. Wavelength is the distance between two peaks of a wave.
Step 3: When light passes through a diffraction grating, it creates patterns of light and dark areas called fringes.
Step 4: The distance between these fringes is called fringe spacing.
Step 5: If you increase the wavelength of the light (make it longer), the fringe spacing also increases (the fringes spread out more).
Step 6: This means that with longer wavelengths, you will see the fringes farther apart from each other.

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