Question

For concave lens that forms a virtual image the lens formula will be:
a. 1/f = 1/v +1/u
b. 1/f = 1/-v + 1/u
c. 1/f = 1/v - 1/u
d. Both A and B

Answer 1

Answer:

the ans is option a for this

Answer 2

Answer:

C. IS THE RIGHT ANSWER

Explanation:

according to lens formula-1/f=1/v-1/u