Question

Precautions to find the wavelength of sodium light by newton's ring experiment

Answer 1

Newton's rings: An experiment to find the wavelength of the sodium light using Plano-convex lens, Sodium lamp and a travelling microscope is called as a Newton's ring experiment.

Precautions:

• The glass and the plano-convex lens must be cleaned properly.
• The microscopic range should be adjusted to get the correct range.
• The sodium light should be focused on the plano-convex lens properly.

Answer 2

the glass should be plano-convex

the sodium light is focused on Plano convex lens