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Chapter 14 - Mirror and Lenses - 4
1.
Match the column..........................principal focus
a) law of reflection
b) air
c) F
d) n
2.
Match the column..........................i=r
a) convex mirrors
b) law of reflection
c) law of refraction
d) F
3.
Match the column..........................automobiles
a) law of reflection
b) convex mirrors
c) air
d) n
4.
Match the column..........................c/v
a) convex mirrors
b) air
c) F
d) n
5.
Match the column..........................3 x 10
8
m/s
a) convex mirrors
b) air
c) law of reflection
d) n
6.
Match the column..........................water
a) rainbow
b) bronchoscope
c) telecommunication
d) 49 degree
7.
Match the column..........................n
a) bronchoscope
b) (sin(A+Dm)/2)/(sin A)/2
c) 49 degree
d) rainbow
8.
Match the column..........................optical fibres
a) rainbow
b) reflection
c) telecommunication
d) bronchoscope
9.
Match the column..........................to examine the sore throat
a) rainbow
b) telecommunication
c) reflection
d) bronchoscope
10.
Match the column..........................an arc of spectral colours
a) bronchoscope
b) rainbow
c) telecommunication
d) 49 degree
11.
Match the column..........................concave mirrors with a parabolic shape
a) spherical abberation
b) search light
c) glass
d) eye lens is thinner
12.
Match the column..........................virtual image
a) eye lens is thinner
b) spherical aberrtion
c) search light
d) concave lens
13.
Match the column..........................long sightedness
a) eye lens is thinner
b) spherical aberration
c) concave lens
d) search light
14.
Match the column..........................2 *10^8m/s
a) glass
b) spherical aberration
c) speed of light
d) concave lens
15.
Match the column..........................image formed are not sharp
a) search light
b) spherical aberration
c) speed of light
d) glass
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