A Physics Student Desires to Create a Beam of Light

question 76

Multiple Choice

A physics student desires to create a beam of light that consists of parallel rays.Which one of the following arrangements would allow her to accomplish this task?

• A)A light bulb is placed at the focal point of a convex mirror.
• B)A light bulb is placed at the focal point of a diverging lens.
• C)A light bulb is placed at the focal point of a converging lens.
• D)A light bulb is located at twice the focal length from a concave mirror.
• E)A light bulb is located at twice the focal length from a converging lens.

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