A hyperopic person has a near point of 150 cm. This person is trying to read a p

Question

A hyperopic person has a near point of 150 cm. This person is trying to read a physics text book 25 cm in front of them.(Assume the lens will be a contact lens and be on the eye.)

i Make a sketch of this setup

ii.What type of lens must this person use?

A.                 Converging B. Diverging

iii. What is the object distance?

A. 25 cm B. -25 cm C. 150 cm D. -150 cm E. None of these

iv. What is the image distance?

A. 25 cm B. -25                 cm C. 150 cm D. -150 cm E. None of these

v. What is the power of the lens?

A. -4.8 D B. 4.8 D C. -3.3 D D. 3.3 D E. None of these vi.

What is the focal length of                 this lens? A. -30 cm B. 30 cm C. -21 cm D. 21 cm E. None of these

Explanation / Answer

a
c
d
c
b

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.