My Learning Cart
?
Categories
Account

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

₹0.0
Login to Download
  • 📥 Instant PDF Download
  • ♾ Lifetime Access
  • 🛡 Secure & Original Content

What’s inside this PDF?

Question: If the wavelength of light used in a single-slit diffraction experiment is increased, what will happen to the position of the first minimum? (2022)

Options:

  1. It moves closer to the center
  2. It moves away from the center
  3. It remains unchanged
  4. It disappears

Correct Answer: It moves away from the center

Exam Year: 2022

Solution: 

The position of the first minimum in single-slit diffraction is given by a sin(θ) = λ. Increasing λ will cause θ to increase, moving the minimum away from the center.

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 will happen to the position of the first minimum? (2022)
  1. It moves closer to the center
  2. It moves away from the center
  3. It remains unchanged
  4. It disappears

Questions & Step-by-Step Solutions

If the wavelength of light used in a single-slit diffraction experiment is increased, what will happen to the position of the first minimum? (2022)
  • Step 1: Understand that in a single-slit diffraction experiment, light passes through a narrow slit and creates a pattern of light and dark areas on a screen.
  • Step 2: Know that the position of the first dark area (minimum) in this pattern is determined by the formula a sin(θ) = λ, where 'a' is the width of the slit, 'θ' is the angle to the first minimum, and 'λ' is the wavelength of the light.
  • Step 3: Recognize that if we increase the wavelength (λ) of the light, we are changing one part of the equation.
  • Step 4: Since 'a' (the slit width) remains constant, increasing 'λ' means that the value of sin(θ) must also increase to keep the equation balanced.
  • Step 5: As sin(θ) increases, the angle θ must also increase because sin(θ) is a function that increases as θ increases.
  • Step 6: A larger angle θ means that the position of the first minimum moves further away from the center of the pattern on the screen.
  • Single-Slit Diffraction – The phenomenon where light spreads out after passing through a narrow slit, creating a pattern of light and dark fringes.
  • Wavelength and Angular Position – The relationship between the wavelength of light and the angular position of the diffraction minima, described by the equation a sin(θ) = λ.
Soulshift Feedback ×

On a scale of 0–10, how likely are you to recommend The Soulshift Academy?

Not likely Very likely
Home Practice Performance eBooks