Question

p: light ray passing along the principal axis is undeviated
Q: light ray passing through the focus is undeviated

which of the following is correct ?

a) both P,Q are correct
b) both P,Q are incorrect
c) P is correct Q is incorrect
d) P is incorrect Q is correct​

Answer 1

-> both p and q are incorrect

1. Ray passing through principal axis moves through focus

2. Ray passing from focus moves parallel to principal axis

3. Ray passing through centre of curvature moves undeflected .