Three identical towels of red, blue and green colour are hanging on a clothes line in the sun. What would be the colour of shadows of these towels?
A student covered a torch with red cellophane sheet to obtain
red light. Using the red light she obtains a shadow of an opaque
object. She repeats this activity with green and blue light. Will
the colour of the light affect the shadow ? Explain.
You are given a transparent glass sheet. Suggest any two ways
to make it translucent without breaking it.
On a sunny day, does a bird or an aeroplane flying high in the
sky cast its shadow on the ground? Under what circumstances
can we see their shadow on the ground?
Correct the following statements.
(i) The colour of the shadow of an object depends on its colour of the object.
(ii) Transparent objects allow light to pass through them partially
Two students while sitting across a table looked down on to
its top surface. They noticed that they could see their own
and each other’s image. The table top is likely to be made of:
(a) unpolished wood
(b) red stone
(c) glass sheet
(d) wood top covered with cloth
Which of the following can never form a circular shadow?
(a) A ball
(b) A flat disc
(c) A shoe box
(d) An ice cream cone
+91 94284 01196
© Copyright 2025. Doubtora. All Rights Reserved
