AP (Advanced Placement) Physics(B-C): Questions 458 - 461 of 921

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Question number: 458

» Light & Optics

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MCQ▾

Question

Which of the following statements is NOT true regarding electromagnetic waves?

Choices

Choice (5)Response

a.

Frequency is directly proportional to wavelength.

b.

They are formed from oscillating electric and magnetic fields.

c.

They can be polarized.

d.

They all travel at the same speed in a vacuum.

e.

Question does not provide sufficient data or is vague

Question number: 459

» Electric Circuits

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MCQ▾

Question

In a circuit, two resistors of resistance and are connected in series. If the power dissipated as heat by two resistors is , then how much current flowing through the circuit?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

Question number: 460

» Electrostatics

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MCQ▾

Question

The electric field at a point on - axis at , is , due to a small object, which is located at origin having net electric charge of . If charge of object becomes double and it is located at , then new electric field at point is:

Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

Question number: 461

» Magnetic Field & Electromagnetism

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MCQ▾

Question

A conducting wire carrying current of is placed in a uniform magnetic field of perpendicular to magnetic field. If the magnitude of the force acting on the wire is , then what is the length of wire?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

None of the above

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