Which of the following can make a parallel beam of light whenlight from a point source is incident on it?
Question
Which of the following can make a parallel beam of light when light from a point source is incident on it?
Solution
The device that can make a parallel beam of light when light from a point source is incident on it is a Collimating lens.
Here are the steps explaining how it works:
- A point source of light emits light in all directions.
- When this light is incident on a collimating lens, the lens only allows light rays that are parallel to its axis to pass through.
- The lens refracts the incoming light rays and aligns them to be parallel to each other.
- The result is a parallel beam of light exiting the lens.
So, a collimating lens can convert light from a point source into a parallel beam of light.
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