AP (Advanced Placement) Physics(B-C): Questions 850 - 853 of 921

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Question number: 850

» Periodic Motion, Mechanical Waves & Sound

MCQ▾

Question

A man is in an car travelling at . A second car is moving toward him at same speed. Its horn is sounding at . What approximate frequency does he hear?

(Speed of sound is )

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 851

» Gravitation and Circular Motion

MCQ▾

Question

Student is given a ball of mass attached to a string of length and told to whirl the ball on the string in a vertical circle so that its velocity at the top is at a minimum. What is the approximately minimum speed at the top?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 852

» Atomic & Nuclear Physics

MCQ▾

Question

What must have been frequency of the photon, when a Hydrogen atom initially in its first excited state, absorbs a photon and ends up in level?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 853

» Periodic Motion, Mechanical Waves & Sound

MCQ▾

Question

A mass oscillates on a spring with a period of and an amplitude of . Which of the following equations describes the position of the oscillating mass as a function of time?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

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