Question Detail

PHY 104 Refraction Through Lenses and Optical Instruments Objective Question
Take CBT

Question

What is the cause of chromatic aberration in lenses?
Options
A The lens having an irregular or asymmetrical shape.
B Light rays striking the lens off-center, leading to distortion.
C Different wavelengths of light having different indices of refraction in the lens material.
Correct Answer
D Mechanical stress or imperfections in the lens material causing localized bending.
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 61 states: 'Chromatic aberration: light of different wavelengths has different indices of refraction and focuses at different points.' This phenomenon is due to dispersion.

Hint

'Chromatic' refers to color, and different colors of light correspond to different wavelengths.

Question Info

Course: PHY 104
Topic: Refraction Through Lenses and Optical Instruments
Type: Objective
Difficulty: Not specified
Question 116 of 947
Previous Course Details Next