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If the wavelength of light used in a diffraction grating is increased, what happens to the angular separation of the fringes? (2023)

Practice Questions

1 question
Q1
If the wavelength of light used in a diffraction grating is increased, what happens to the angular separation of the fringes? (2023)
  1. Increases
  2. Decreases
  3. Remains the same
  4. Becomes zero

Questions & Step-by-step Solutions

1 item
Q
Q: If the wavelength of light used in a diffraction grating is increased, what happens to the angular separation of the fringes? (2023)
Solution: The angular separation (θ) is directly proportional to the wavelength (λ). Therefore, increasing λ increases the angular separation.
Steps: 0

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