Subject :NSO Class : Class 3
A torch is shone on a wooden prism and a beach ball as shown below.
What will be the shape of shadow observed on the screen?
A 
B 
C 
D 
how is it correct
Ans 1:
Class : Class 8
A
Ans 2:
Class : Class 3
Ans 3:
Class : Class 3
c
Ans 4:
Class : Class 7
A