Question Detail

PHY 104 Refraction Through Lenses and Optical Instruments Objective Question

Question

What does a negative value for the power (P) of a lens signify?
Options
A The lens is a converging lens.
B The lens is a diverging lens.
Correct Answer
C The lens has an infinitely large focal length.
D The lens produces an upright image.
Correct Answer

Option B is the correct answer.

Detailed Explanation

The last sentence on page 14 states: 'The power of a lens is positive if it is converging and negative if it is diverging.' Therefore, a negative power indicates a diverging lens.

Hint

Remember the relationship between the sign of lens power and the type of lens (converging or diverging) as stated on page 14.

Question Info