Read the following carefully and choose the correct option
Statement 1: The power of a lens is defined as the reciprocal of its focal length.
Statement 2: The SI unit of power is Dioptre.
Statement 3: A lens with a power of 2.0 D is a concave lens.
1
All statements are true.
2
Statements 1 and 2 are true; Statement 3 is false.
3
Statements 1 and 3 are true; Statement 2 is false.
4
Only Statement 2 is true.