Post Utme Unn 2020 Physics Question 37

Practice objective / multiple choice question 37 from the 2020 Post Utme Unn Physics examination.

Post Utme Unn 2020 Physics Objective / Multiple Choice
Question 37 POST_UTME_UNN • 2020 • PHYSICS • objective
Post Utme Unn 2020 Physics Question 37 diagram

A convex lens of focal length 20 cm is placed in contact with a concave lens of focal length -30 cm. A parallel beam of light is incident on the combination. Determine the nature and focal length of the resulting lens.

Answer Options

Correct Answer A. Convex lens with focal length 10 cm
B. Concave lens with focal length -10 cm
C. Convex lens with focal length 40 cm
D. Concave lens with focal length -40 cm
Correct Answer
A
Correct Option:
Convex lens with focal length 10 cm

About This Question

This is Post Utme Unn 2020 Physics Question 37. It is one of the objective questions from the 2020 Post Utme Unn Physics examination.

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