Question

1. Fill in the blanks.
(a) A
is a tube of mirrors, containing
loose and small coloured objects, to show
their
images.
(b) An
number of images are formed
by two plane mirrors, kept parallel to each
other.
(c) Reflected light can be
again. The
phenomenon is called
reflection.
(d) A periscope makes use of multiple
of light, and it is used to see objects at
different
(e) The
is made up of seven colours.​

Answer 1

Answer:

a- Kalidioscope

b- infinity

d-tow plane