AP (Advanced Placement) Physics(B-C): Questions 489 - 493 of 920

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Question number: 489

» Fluids & Solids

MCQ▾

Question

A wire of a metal, whose elastic limit is , is to be stretched by a load of . What is the minimum diameter the wire must have, if the elastic limit is not to be exceeded?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 490

» Atomic & Nuclear Physics

MCQ▾

Question

What is the distance in between crystal planes in an atomic solid if electromagnetic radiation of frequency incident at a angle creates constructive interference fringes (assume )?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 491

» Thermodynamics

MCQ▾

Question

A system of ideal gas molecules contains moles of gas. of work is done in compressing the gas as the gas gives off of energy. Then the gas is allowed to expand, doing of work on its surroundings. What is the net change in internal energy of the gas as a result of these processes?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

Question number: 492

» Atomic & Nuclear Physics

MCQ▾

Question

Which of the following equations correctly expresses the momentum of a photon?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

Question number: 493

» Fluids & Solids

MCQ▾

Question

A wooden block is placed in water and floats submerged and above water. When the block is placed on an a liquid which is as dense as water, the block:

Choices

Choice (5) Response

a.

Floats under the surface of the alcohol

b.

Sinks in the alcohol

c.

Floats under the surface of the alcohol

d.

Floats under the surface of the alcohol

e.

Question does not provide sufficient data or is vague

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