Question Detail

PHY 104 Reflection and Refraction of Light Objective Question
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Question

Which type of reflector is used to avoid spherical aberration, despite being more difficult and expensive to make?
Options
A Plane reflector
B Concave spherical reflector
C Parabolic reflector
Correct Answer
D Convex spherical reflector
Correct Answer

Option C is the correct answer.

Detailed Explanation

Page 22 states: 'Spherical aberration can be avoided by using a parabolic reflector; these are more difficult and expensive to make, and so are used only when necessary, such as in research telescopes.'

Hint

Consider the special shape mentioned that provides a precise focus.

Question Info

Course: PHY 104
Topic: Reflection and Refraction of Light
Type: Objective
Difficulty: Not specified
Question 35 of 947
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