Question

To understand the importance of screen
in the formation of a shadow
Things required: Torch, an open ground, a tree
dow
Method:
1. Take two
of
your friends with you in an
rtial
-t,
Activity
Aim: To study the shadows formed by
varying the distance between the light
source, object, and the screen
Things required: Opaque object, sourc
light, sheet of paper
Method:
1. Take the opaque object and the
paper which will act as a scree
move the source of light towa
object and observe its shadow
screen.
hind
open ground when it is dark. Shine the
torch at your friend's face. Can you see
any shadow forming?
2. Now go near the tree and ask your
friend to stand with his back facing the
tree. Shine the torch on your friend. Can
you see the shadow now?
Observation: Shadow forms when
your friend
(a body) stands against a tree (a screen).
Conclusion: A screen is important for a
as
an
2. Keeping the distance betwee
and the source of light fixed
distance between the objec
screen. Now, observe the
size of the shadow.
shadow to form.
Characteristics of a shadow
Observation:
formed​

Answer 1

Answer:

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