Question

What is lateral shift if displacement?
2)Define POWER OF A LENS AND ITS S.I UNIT? ​

Answer 1

Answer:

Question:

What is lateral shift if displacement?

Answer:

When a ray of light travels through a glass slab from air, it bends towards the normal and when it comes out of the other side of the glass slab, it bends away from the normal.

This shift in the emergent ray with respect to the incident ray is called lateral shift or lateral displacement.

Question:

Define power of a lens and its SI units

Answer:

The power of a lens is defined as the reciprocal of the focal length.

S.I unit: Dioptre

Answer 2

Answer:

1. When a ray of light travels through a glass slab from air, it bends toward the normal and when it composes out of the other side of the glass slab, it bends away from the normal. .....

This shift in the emergent ray with respect to the incident ray is called Lateral shift or lateral displacement.

2. Power of lens is known as Inverse of the focal length of the lena measured in meter (m).

S.I unit of power = Dioptre (D) Power of lens = 1/focal length in meter.

Explanation:

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