B. Match the following.
Column A
1. Spectrum of light
2. Property of light
3. Convex lens
a.
rectilinear propagation
b.
a lens thick in the middle
C.
4. Concave mirror
d.
a mirror polished from outside
image formed is always virtual and
on the same side of the lens
5. Concave lens
e.
band of seven colours of light
C. Fill in the blanks.
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