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In a prism, if the angle of the prism is 60 degrees, what is the minimum angle o

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Question: In a prism, if the angle of the prism is 60 degrees, what is the minimum angle of deviation for light passing through it?

Options:

  1. 30 degrees
  2. 60 degrees
  3. 90 degrees
  4. 45 degrees

Correct Answer: 30 degrees

Solution: 

The minimum angle of deviation (D) for a prism is given by D = A, where A is the angle of the prism. Therefore, for a 60-degree prism, the minimum angle of deviation is 30 degrees.

In a prism, if the angle of the prism is 60 degrees, what is the minimum angle o

Practice Questions

Q1
In a prism, if the angle of the prism is 60 degrees, what is the minimum angle of deviation for light passing through it?
  1. 30 degrees
  2. 60 degrees
  3. 90 degrees
  4. 45 degrees

Questions & Step-by-Step Solutions

In a prism, if the angle of the prism is 60 degrees, what is the minimum angle of deviation for light passing through it?
  • Step 1: Understand what a prism is. A prism is a transparent object that bends light.
  • Step 2: Know the angle of the prism. In this case, the angle of the prism (A) is given as 60 degrees.
  • Step 3: Learn about the minimum angle of deviation (D). The minimum angle of deviation is the smallest angle at which light can pass through the prism.
  • Step 4: Remember the rule for minimum angle of deviation. For a prism, the minimum angle of deviation (D) is equal to half the angle of the prism (A).
  • Step 5: Calculate the minimum angle of deviation. Since A is 60 degrees, D = A / 2 = 60 degrees / 2 = 30 degrees.
  • Step 6: Conclude that the minimum angle of deviation for light passing through a 60-degree prism is 30 degrees.
  • Angle of Deviation – The angle by which light is bent when passing through a prism, which is minimized when light enters and exits symmetrically.
  • Prism Angle – The angle formed by the two plane surfaces of the prism, which influences the behavior of light passing through it.
  • Minimum Angle of Deviation – The smallest angle of deviation that occurs when light passes through a prism at a specific angle, typically equal to the prism angle under certain conditions.
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