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An object is placed at the principal focus of a concave lens. Which of the following options represents the characteristics of the image formed?

AReal and enlarged

BVirtual and enlarged

CReal and diminished

DVirtual and highly diminished

Answer:

D. Virtual and highly diminished

Read Explanation:

  • When an object is placed at the principal focus of a concave lens, the image formed is virtual, highly diminished, and on the same side as the object.

  • The images formed by the concave lens are always upright, virtual and smaller than the object.

  • hence, Virtual and highly diminished characteristics of the image formed.

Related Questions:

A concave mirror having focal length of magnitude 20 cm forms a real image at a distance of 60 cm from it. The object distance (in cm) is?

In which of the following cases does a concave mirror form a real image?

  1. (i) Object placed between focus and pole
  2. (ii) Object placed at infinity
  3. (iii) Object placed at focus
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    A convex lens having power 5 D is placed in contact with a concave lens having power-3 D. The focal length of the combination will be?