Important questions for ISCE Board exam (Physics) of Feb 2020 More chapters on scitechgen.com

1. IMPORTANT THEORY QUESTIONS
Spherical Mirrors
Prepared by : Mukesh N Tekwani
Email: scitechgen@outlook.com
Sr
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Marks Keyword(s)
1 What is a spherical mirror? Differentiate between a concave and convex
mirror. Draw neat diagrams of convex and concave mirrors.
3 Define
2 For spherical mirrors, define the following terms: (i) Pole, (ii) centre of
curvature, (iii) Radius of curvature
3 Define
3 For spherical mirrors, define the following terms: (i) Principal axis, (ii)
aperture, (iii) principal focus
3 Define
4 Using ray diagrams, show the position of the principal focus for (i) concave
mirror, (ii) convex mirror
2 Diagram
5 Define the terms (i) focal length and focal plane 2 Define
6 For a concave mirror of small aperture, the focal length of the mirror is half
the radius of curvature. Prove this relation. Draw a neat ray diagram.
3 Derive
7 For a convex mirror of small aperture, the focal length of the mirror is half
the radius of curvature. Prove this relation. Draw a neat ray diagram.
3 Derive
8 For a concave / convex mirror, derive the mirror formula 1/f = 1/u +1/v 5 Derive
9 Define linear magnification produced by a spherical mirror. Show that the
magnification produced by a concave mirror is m = -v/u, where u is the
object distance and v is image distance.
3 Derive
10 What type of mirror is preferable in a car for observing traffic at your back,
and why?
2 Spherical
mirror
(c)M
ukesh
N
Tekw
ani