AP (Advanced Placement) Physics(B-C): Questions 556 - 559 of 921

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Question number: 556

» Atomic & Nuclear Physics

MCQ▾

Question

An electron changes energy states from higher energy to lower energy . Which of the following correctly expresses the wavelength of light emitted in this transition?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

Question number: 557

» Thermodynamics

MCQ▾

Question

In a machine, an engine receives from a heat reservoir at and rejects to the cold reservoir at . What is the actual efficiency for this engine?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

Question number: 558

» Electric Circuits

MCQ▾

Question

Two parallel plate capacitors of different capacitances are charged by same potential difference. The Capacitor 1 stores energy and the capacitor 2 stores energy. What is the ratio of capacitance of capacitor 1 to capacitance of capacitor 2?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

Question number: 559

» Light & Optics

MCQ▾

Question

For total internal reflection to occur at the interface between two different materials, all of the following conditions must be met EXCEPT:

Choices

Choice (5) Response

a.

The incident angle must be less than the critical angle

b.

The incident path of the light must be from a medium with a higher index of refraction to a medium with a lower index of refraction

c.

The critical angle must be equal to , where is the incident medium

d.

The incident angle must be the critical angle when the refracted angle is

e.

All of the above

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