A monochromatic light source emits a wavelength of 710 nm in air.When passing through a liquid,the wavelength reduces to 654 nm.What is the liquid's index of refraction?
A) 1.18
B) 1.04
C) 1.09
D) 1.92
E) 1.85

Question

A monochromatic light source emits a wavelength of 710 nm in air.When passing through a liquid,the wavelength reduces to 654 nm.What is the liquid's index of refraction?
A) 1.18
B) 1.04
C) 1.09
D) 1.92
E) ​1.85

Quizplus · Accepted Answer

The index of refraction, n, can be calculated using the relationship n = λair/λliquid, where λair is the wavelength in air and λliquid is the wavelength in the liquid. Substituting the given values, we get n = 710 nm/654 nm = 1.086. The closest answer choice is C) 1.09.

A Monochromatic Light Source Emits a Wavelength of 710 Nm