( Q.1 – Q.5 carry 1 MARK)

1.      Distinguish between real and virtual image.

2.      List two points of differences between concave mirror and convex mirror?

3.      The refractive index of diamond is 2.42. What is the meaning of this statement?

4.      Define critical angle for a medium.

5.      How will you distinguish between concave, convex, plane mirror without touching?

( Q.6 – Q.8 carry 2 MARK)

6.      A diamond (R.I. w.r.t air = 2.42) is dipped in a liquid of refractive index 1.4. Find the refractive index of diamond w.r.t the liquid.

7.      Draw ray diagrams to show the formation of image of an object by a concave mirror when the object is placed

i)        Between centre of curvature and Focus    

ii)       Beyond centre of curvature

8.      What are the uses of concave and convex mirrors?

( Q.9 – Q.11 carry 3 MARK)

9.      Define the following regarding reflection of light from curved lenses

i)  First Principal Focus      ii)  Optic centre         iii) Convex Lens