Question Detail

PHY 104 Refraction Through Lenses and Optical Instruments Objective Question
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Question

What causes chromatic aberration in lenses, and what is a common solution mentioned?
Options
A Rays not focusing due to lens shape; solved by using only the central part of the lens
B Variation in magnification with distance; solved by using barrel distortion correction
C Different wavelengths focusing at different points due to varying refractive indices; solved by an achromatic doublet
Correct Answer
D Lens heating causing expansion; solved by cooling systems
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.' Page 62 provides the solution: 'Achromatic doublet, made of lenses of two different materials'.

Hint

'Chromatic' refers to color, which is related to the wavelength of light.

Question Info

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