Good one!
Q1.
Which of the following statements is supported by the passage?A. The Doppler effect is universally accepted by physicists. -
Out of the scope of the passage. Nothing related to this is mentioned. B. The pitch from a siren moving away from an observer seems lower than it actually is. -
Yes. Discussed in the passage.C. The Doppler effect was proposed before the advent of electric sirens. -
Timeline is not given in the passage.Q2.
The passage provides information on each of the following exceptA) what happens to the relative pitch of a sound wave as its source approaches an observer -
Given in the passage.B) what happens to the relative pitch of a sound wave as its source recedes from an observer -
Given in the passage.C) the physical property of sound necessary to produce the Doppler effect -
"sound is emitted in waves." is discussedD) whether the pitch of a sound at the observer’s location is the same as its pitch while it is approaching the observer -
Given in the passage.E) the distance from the observer at which the sound is most intense -
Not discussed. Right answer
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