AP (Advanced Placement) Physics(B-C): Questions 200 - 201 of 921

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Question number: 200

» Periodic Motion, Mechanical Waves & Sound

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MCQ▾

Question

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

Passage

Two current carrying wires

Two Current Carrying Wires

Question number: 201 (1 of 2 Based on Passage) Show Passage

» Magnetic Field & Electromagnetism

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MCQ▾

Question

In the illustration, the current in the bottom wire is switched so that the two parallel wires have currents of equal magnitude moving in the same direction. What is the direction of the net magnetic field at point , which is located equidistant from the wires, due to the currents in the wires?

Choices

Choice (5)Response

a.

Out of the page

b.

Into the page

c.

There is not net magnetic field at point P.

d.

To the right

e.

Question does not provide sufficient data or is vague

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