Assertion (A): Reflecting telescopes are preferred over refracting telescopes when…
PHYSICS · Single correct · A Level · Physics · Astrophysics · Astrophysics
Problem
Assertion (A): Reflecting telescopes are preferred over refracting telescopes when very large apertures are required.
Reason (R): A large mirror can be supported from the rear surface whereas a large lens can be supported only at its rim.
(a) Both A and R are true, but R is not the correct explanation of A.
(b) A is true, but R is false.
(c) Both A and R are true, and R is the correct explanation of A.
(d) A is false, but R is true.