Question

When an object approaches a convex lens from infinity, the image formed by it shifts

• A. away from the lens
• B. towards the lens
• C. first away and then toward the lens
• D. first towards and then away from the lens

Answer 1

The correct option is A away from the lens

1. when object is at infinity then image formed at F, it is real , inverted and diminished.

2. when object is at 2F then image formed at 2F , real , inverted and of same size.

3 when object is placed between F and 2F then image will formed beyond 2F real , inverted and magnified.

from above three statements we conclude that as the objects approaches the lens from infinity the image will move away from lens respectively

thus

Option A is correct.