Subject :NSO Class : Class 4
Shuchi shone a ray of light onto sheet P as shown in the diagram. She found that a bright circle appeared only on sheet S. What can we deduce about the properties of sheets P, Q, R and S?
ASheet Q is made up of a translucent material.
BSheet R is made up of a translucent material.
CSheets R and S are made up of an opaque material.
DSheets P and S are made up of an opaque material.