A Nearsighted Physicist Cannot See Things Clearly Beyond 90 Cm

question 70

Multiple Choice

A nearsighted physicist cannot see things clearly beyond 90 cm from her eyes.What is the power of the contact lenses that will enable her to see very distant objects clearly?

• A) 1.1 diopters
• B) -1.1 diopters
• C) -1.7 diopters
• D) -2.2 diopters
• E) 2.2 diopters

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Definitions:

Sleepwalking

Sleepwalking is a sleep disorder causing people to get up and walk while in a state of sleep, often having no memory of the activity.

Paradoxical Sleep Waves

Brain waves associated with REM (rapid eye movement) sleep, during which dreaming usually occurs and the body experiences atonia but the brain is active.

N3 Sleep

The third stage of non-REM sleep that is characterized by deep sleep, during which it is hardest to awaken someone, and when the body repairs and regrows tissues.

Sleepwalking

A disorder occurring during deep sleep, leading to walking or performing other complex behaviors while still mostly asleep.