Priyanka B Solutions for Chapter: Light : Reflection and Refraction, Exercise 2: Assignment-1

Mention the two properties of image formed by convex mirror.

Name the mirror that 

(a) can give real as well as virtual image of an object.

(b) will always give virtual image of same size of an object.

(c) will always give virtual and diminished image of an object.

(d) is used by a doctor in examining teeth.

The magnification produced by a spherical mirror is $-3$. List four information you can obtain from the statement about the mirror image.

If the image formed by a mirror for all positions of the object placed in front of it is always erect and diminished, what type of mirror is it? Draw a ray diagram to justify your answer. Where and why do we generally use this type of mirror?

A concave mirror of focal length '$f$' can form a magnified erect as well as inverted image of an object with respect to the mirror in each case. Draw the ray diagrams for the same.

How will you distinguish between a plane mirror, a convex mirror and a concave mirror just by looking at the images formed by them?

Draw ray diagrams to show the formation of images when the object is placed in front of a concave mirror.

(i) between pole and focus point

(ii) between focus and centre of curvature

(iii) beyond centre of curvature.

Draw ray diagrams to show the formation of images when the object is placed in front of a convex mirror.

(i) at infinity

(ii) at any point between infinity and pole.

Why is the focal length of a convex mirror is positive?