R) It is simply a convex lens.
A. Only (P) is correct
B. Only (P) and (Q) are correct
C. Only (Q) and (R) are correct
D. Only (P) and (R) are correct
Answer:D
R) It is simply a convex lens.
A. Only (P) is correct B. Only (P) and (Q) are correct C. Only (Q) and (R) are correct D. Only (P) and (R) are correct