A Source Travelling to the Right at a Speed of 10

question 34

Multiple Choice

A source travelling to the right at a speed of 10 m/s emits a sound wave at a frequency of 100 Hz.The sound wave is reflected off a reflector which is travelling to the left at a speed of 5 m/s.What is the frequency of the reflected sound wave detected by a listener back at the source?

• A)105 Hz
• B)104 Hz
• C)109 Hz
• D)96 Hz
• E)91 Hz

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Definitions:

Lens

A transparent structure in the eye that focuses light onto the retina to produce clear images.

Elongated Eye

A condition often associated with myopia, where the eyeball is longer than normal, causing light to focus in front of the retina.

Nearsightedness

A common vision condition in which close objects are seen clearly, but objects farther away appear blurred.

Far Objects

Items or entities that are physically distant from the observer or point of reference.