Concept explainers
A solar cooker, really a concave mirror pointed at the Sun, focuses the Sun's rays 18.8 cm in front of the mirror. What is the radius of the spherical surface from which the mirror was made?
The radius of the spherical surface from which the mirror was made
Answer to Problem 8P
Solution:
37.6 cm
Explanation of Solution
Given info:
A concave mirror pointed at the Sun, focused the sun`s rays 18.8 cm in front of the mirror.
Formula used:
The radius of curvature,
Calculation:
As rays from the sun will parallel, therefore the image will be at the focal point, which is half the radius of curvature.
So,
Chapter 23 Solutions
Physics: Principles with Applications
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