AP (Advanced Placement) Physics(B-C): Questions 660 - 663 of 920

Get 1 year subscription: Access detailed explanations (illustrated with images and videos) to 920 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. View Sample Explanation or View Features.

Rs. 450.00 or

Question number: 660

» Thermodynamics

MCQ▾

Question

Apparatus that liquefies helium is in a laboratory at . The helium in the apparatus is at . If of heat is transferred from the helium, What is the minimum amount of heat delivered to the laboratory?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 661

» Atomic & Nuclear Physics

MCQ▾

Question

If the work function of a metal is , then what is the threshold wavelength for the ejection of photoelectrons from this metal?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

Question number: 662

» Atomic & Nuclear Physics

MCQ▾

Question

If the ground state energy of electron in Bohr’s model is , then how much energy emitted with photon during transition to ?

Choices

Choice (5) Response

a.

b.

c.

d.

e.

All of the above

Question number: 663

» Torque and Equilibrium

MCQ▾

Question

A meter rod in the figure has a mass of . With a laboratory mass hanging from the top end, the meter rod remains stable against a frictionless wall with its bottom end from the base of the wall. What is the friction force exerted on the rod by the floor?

A meter stick with 5 kg mass

A Meter Stick with 5 Kg Mass

In figure, a meter stick inclined on wall is shown.

Choices

Choice (5) Response

a.

b.

c.

d.

e.

None of the above

f Page