Refer to given set-up and answer the following questions.
X : What will be the shape of the shadow obtained?
Y : How can we get a triangular shadow?
A
B
C
DNone of these
B
Refer to given set-up and answer the following questions.
X : What will be the shape of the shadow obtained?
Y : How can we get a triangular shadow?
A
B
C
DNone of these