Problem 25.22 A person can see clearly up close, but cannot focus on objects bey

Question

Problem 25.22 A person can see clearly up close, but cannot focus on objects beyond 82.0cm . She opts for contact lenses to correct her vision. she is nearsighted and uses a diverging lense Part C What focal-length contact lens is needed ?
Part D What is the power of the contact lens in diopters? Problem 25.22 A person can see clearly up close, but cannot focus on objects beyond 82.0cm . She opts for contact lenses to correct her vision. she is nearsighted and uses a diverging lense Part C What focal-length contact lens is needed ?
Part D What is the power of the contact lens in diopters? A person can see clearly up close, but cannot focus on objects beyond 82.0cm . She opts for contact lenses to correct her vision. she is nearsighted and uses a diverging lense Part C What focal-length contact lens is needed ?
Part D What is the power of the contact lens in diopters? Part C What focal-length contact lens is needed ?
Part D What is the power of the contact lens in diopters? Part D What is the power of the contact lens in diopters?

Explanation / Answer

focal length, f= -82 cm= -0.82 m power= 1/f= 1/-0.82 D= -1.22 D

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