Question Detail

PHY 104 Refraction Through Lenses and Optical Instruments Objective Question
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Question

For a magnifying glass when the eye is relaxed, which formula correctly represents the angular magnification (M), where N is the near point distance and f is the focal length?
Options
A M = f / N
B M = N / f
Correct Answer
C M = N + f
D M = N * f
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 50 shows the formula for angular magnification when the eye is relaxed: M = N / f. This is derived from M = θ'/θ = (h/f) / (h/N) = N/f.

Hint

Consult the section on 'Magnifying Glass' on page 50, specifically the formula for a relaxed eye.

Question Info

Course: PHY 104
Topic: Refraction Through Lenses and Optical Instruments
Type: Objective
Difficulty: Not specified
Question 89 of 947
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