Eyes: a Man Is Nearsighted and Cannot See Things Clearly

question 31

Multiple Choice

Eyes: A man is nearsighted and cannot see things clearly beyond 110 cm from his eyes. What is the focal length of the contact lenses that will enable him to see very distant objects clearly?

• A) 50 cm
• B) - 50 cm
• C) - 110 cm
• D) 110 cm
• E) -30 cm

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Definitions:

Cocaine

A powerful stimulant drug derived from the leaves of the coca plant, which can cause short-term euphoria, energy, and talkativeness.

Heroin

An opioid drug made from morphine, a natural substance taken from the seed pod of various opium poppy plants, highly addictive and illegal.

Amphetamines

A class of stimulant drugs that increase alertness, attention, and energy, often used medically and recreationally.

Hypothalamic-Pituitary-Adrenal Axis

A major neuroendocrine system that controls reactions to stress and regulates many body processes, including digestion, immune system responses, and energy storage and expenditure.