Beams of light are incident through the holes A and B and emerge out of box through the holes C and D respectively as shown in the figure. Which of the following could be inside the box? [NCERT Exemplar Problems]
A. A rectangular glass slab
B. A convex lens .
C. A concave lens
D. A prism
Answer:A
Beams of light are incident through the holes A and B and emerge out of box through the holes C and D respectively as shown in the figure. Which of the following could be inside the box? [NCERT Exemplar Problems]
A. A rectangular glass slab B. A convex lens . C. A concave lens D. A prism