Question:

An air doubble is inside water (μ=\(\frac{4}{3}\)). At what distance from the air bubble should a point object be placed so as to form a real image at the same distance from the dubble? (r is the radius of curvature of the bubble)

Updated On: Aug 3, 2023
  • 2R

  • 4R

  • 3R

  • The air bubble cannot form a real image

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The Correct Option is D

Solution and Explanation

The correct answer is option (D): The air bubble cannot form a real image
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Concepts Used:

Spherical Mirrors

A spherical mirror is a mirror which has been cut out of a spherical surface. 

There are two kinds of spherical mirrors:

  1. Convex Mirror
  2. Concave Mirror
Spherical Mirrors
Spherical Mirrors

 

 

 

 

 

 

 

 

 

Concave Mirror

Concave mirrors are also called converging mirrors, because in these types of mirrors, light rays converge at a point after impact and reflect back from the reflective surface of the mirror.

Convex Mirror

The convex mirror has a reflective surface that is curved outward. Regardless of the distance between the subject and the mirrors, these mirrors are "always" virtual, upright and reduced.