A spherical mirror of focal length f produces an upward image (h' > O) of size half that of an object. The object is placed at 30 cm in front of the mirror. The value of f is: О -15 ст O -30 cm O +60 cm O +10 cm O +30 cm

A spherical mirror of focal length f produces an upward image (h' > O) of size half that of an object. The object is placed at 30 cm in front of the mirror. The value of f is: О -15 ст O -30 cm O +60 cm O +10 cm O +30 cm

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter26: Image Formation By Mirrors And Lenses

Section: Chapter Questions

Problem 11OQ

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Concept explainers

Applications Of Reflection Of Light

When a light ray (termed as the incident ray) hits a surface and bounces back (forms a reflected ray), the process of reflection of light has taken place.

Sign Convention for Mirrors

A mirror is made of glass that is coated with a metal amalgam on one side due to which the light ray incident on the surface undergoes reflection and not refraction.

Question

A spherical mirror of focal length f
produces an upward image (h' > 0) of size
half that of an object. The object is placed
at 30 cm in front of the mirror. The value of
f is:
О -15
-15 cm
-30 cm
+60 cm
+10 cm
O +30 cm

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