Problem

Solutions For Admission Assessment Exam Review Chapter B Problem 18RCPT

Solution 1

The movement of an object affects the sound. This was explained by the writer in the above given case with the theory of Doppler Effect. The Doppler Effect refers to a change in the frequency of radiation as it moves away/toward from the radiation. This effect produces a sudden change in pitch that is noticeable in a passing siren. In the above case, Doppler Effect clearly explains why the sound is heard more loudly and faintly once the object is moving away from the subject.

Step #2 of 4

Therefore, as the oncoming sound waves approaching do possess high frequency with high pitch and closeness of waves with higher amplitude in the above case. The sound waves, which are located farther do possess shorter pitch. The ambulance is approaching with a siren that causes the higher frequency of sound waves due to Doppler Effect.

Step #3 of 4

Thus, the options (d), (c), and (a) are incorrect.

Step #4 of 4

Therefore, as the oncoming sound waves approaching do possess high frequency with high pitch and closeness of waves with higher amplitude in the above case. The sound waves, which are located farther do possess shorter pitch. The ambulance is approaching with a siren that causes the higher frequency of sound waves due to Doppler Effect.

Therefore, the correct option is –

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Solutions For Problems in Chapter B

Solutions For Admission Assessment Exam Review Chapter B Problem 18RCPT

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