# Periodic Motion, Mechanical Waves & Sound [AP (Advanced Placement) Physics(B-C)]: Questions 1 - 2 of 73

Access detailed explanations (illustrated with images and videos) to 921 questions. Access all new questions- tracking exam pattern and syllabus. View the complete topic-wise distribution of questions. Unlimited Access & Unlimited Time!

View Sample Explanation or View Features.

Rs. 450.00 -OR-

## Question number: 1

Periodic Motion, Mechanical Waves & Sound
Edit

### Question

MCQ▾

Blowing across a tube open at both ends produces a musical note. If you place your finger over the open end of the tube at the bottom and blow across the top of the tube, a second note is produced. Compare the pitch and frequency of the second note to that of the note produced with the pitch and frequency of the original note.

### Choices

Choice (5)Response

a.

The second note has a lower pitch and one half the frequency.

b.

The second note has a higher pitch and one half the frequency.

c.

The second note has a lower pitch and twice the frequency.

d.

The second note has a higher pitch and twice the frequency.

e.

None of the above

## Question number: 2

Periodic Motion, Mechanical Waves & Sound
Edit

### Question

MCQ▾

A person is driving on a divided highway at , and encounters an emergency vehicle with a siren that is emitting a constant frequency. In which of the following situations will he hears the highest frequency from the siren?

### Choices

Choice (5)Response

a.

The emergency vehicle is ahead of you, moving away from you at .

b.

The emergency vehicle is ahead of you, moving toward you from the other direction at .

c.

The emergency vehicle is in the lane next to you, moving in the same direction at .

d.

The emergency vehicle is behind you, moving in your direction at .

e.

Question does not provide sufficient data or is vague