es, We can see through it only faintly, but
rly
a) Which material is Transparent, Translucent, and Opaque?
(3)
b) Name one material which behaves like A,B and C.
2) On a sunny day, when we pass under a tree covered with a very large number of leaves, we often
see bright circular patches of light on the ground (under the tree).
(2)
a) What are the bright circular patches of light?
b) Name the object in this case.
What acts as screen in this case?
d) Which effect is illustrated by the everyday observation described above?
3) A man is sitting on a chair in a dark room near one of the walls. A big mirror is hung on the wall
facing the man. When a torch light is put on the man from a distance, then we can see X of the man
on the wall behind him. At the same time Y of the man can be observed in the mirror on the wall.
(1.5)
a) What is X?
b) What is y?
c) State one way in which x differs from y.
4) Study the magnets X and Y given below:
(1/2)
А
B
C
D
(1)
a) What will happen when A is brought close to C?
5) Look at the table given below.
Part of a magnet
No. of paper clips attached
A.
7
B.
3
C.
8
D.
4
a) Which part of the magnet are the poles ?
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