Question

Distinguish between convex lens and concave lens.

Answer 1

Hey,

Convex lens:-

1. It is thick in the middle and thin at the edges
2. It converges the incident rays towards the principal axis.
3. It has a real focus.

Concave lens:-
1. It is thin in the middle and thick at the edges.
2. It diverges the incident rays away from the principal axis. 
3. It has a virtual focus.

HOPE IT HELPS:-))

Answer 2

Convex lens:-

1. It is thick in the middle and thin at the edges

2. It converges the incident rays towards the principal axis.

3. It has a real focus.

Concave lens:-

1. It is thin in the middle and thick at the edges.

2. It diverges the incident rays away from the principal axis. 

3. It has a virtual focus.

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