Question Detail

PHY 104 Refraction Through Lenses and Optical Instruments Objective Question
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Question

Which type of lens is needed to correct farsightedness (hypermetropia)?
Options
A A diverging lens
B A converging lens
Correct Answer
C A cylindrical lens
D A plano lens
Correct Answer

Option B is the correct answer.

Detailed Explanation

Page 43 states: 'A converging lens is needed to correct this as it helps to converge the light more.' Page 45 also shows a diagram of a converging lens correcting farsightedness.

Hint

Farsightedness occurs when light from nearby objects focuses behind the retina. What kind of lens would help bring that focal point forward?

Question Info

Course: PHY 104
Topic: Refraction Through Lenses and Optical Instruments
Type: Objective
Difficulty: Not specified
Question 74 of 947
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