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If the wavelength of light used in a single-slit diffraction experiment is incre

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Question: If the wavelength of light used in a single-slit diffraction experiment is increased, what happens to the width of the central maximum? (2023)

Options:

  1. It decreases
  2. It increases
  3. It remains the same
  4. It becomes zero

Correct Answer: It increases

Exam Year: 2023

Solution: 

The width of the central maximum in single-slit diffraction is directly proportional to the wavelength. Increasing the wavelength increases the width.

If the wavelength of light used in a single-slit diffraction experiment is incre

Practice Questions

Q1
If the wavelength of light used in a single-slit diffraction experiment is increased, what happens to the width of the central maximum? (2023)
  1. It decreases
  2. It increases
  3. It remains the same
  4. It becomes zero

Questions & Step-by-Step Solutions

If the wavelength of light used in a single-slit diffraction experiment is increased, what happens to the width of the central maximum? (2023)
  • Step 1: Understand what a single-slit diffraction experiment is. It involves shining light through a narrow slit and observing the pattern created on a screen.
  • Step 2: Identify what the central maximum is. It is the brightest part of the diffraction pattern, located in the center.
  • Step 3: Learn about wavelength. Wavelength is the distance between two consecutive peaks of a light wave.
  • Step 4: Recognize the relationship between wavelength and the width of the central maximum. The width of the central maximum increases as the wavelength increases.
  • Step 5: Conclude that if the wavelength of light is increased, the width of the central maximum will also increase.
  • Single-Slit Diffraction – The phenomenon where light spreads out after passing through a narrow slit, creating a pattern of light and dark bands.
  • Wavelength and Diffraction – The relationship between the wavelength of light and the width of the diffraction pattern, where a longer wavelength results in a wider central maximum.
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