AP (Advanced Placement) Physics(B-C): Questions 252 - 254 of 921

Access detailed explanations (illustrated with images and videos) to 921 questions. Access all new questions- tracking exam pattern and syllabus changes. View the complete topic-wise distribution of questions. Unlimited Access for Unlimited Time!

View Sample Explanation or View Features.

Rs. 450.00 or

How to register?

Question number: 252

» Periodic Motion, Mechanical Waves & Sound

Edit
MCQ▾

Question

Let a speaker is at distance far from the listener, then intensity of sound at listener is . If speaker moves far from listener, then intensity becomes:

Choices

Choice (5)Response

a.

b.

c.

d.

e.

All of the above

Question number: 253

» Electric Circuits

Edit
MCQ▾

Question

A Capacitor is charged to . Without removing any of the charges or changing the plate’s area or dielectric, the plates are moved apart so that there is twice the distance between them as before. What happens to the energy stored in the capacitor?

Choices

Choice (5)Response

a.

Negative work is done in moving the plates apart, so the energy stored in the capacitor decreases.

b.

The capacitance increases when the distance between plates increases, so the potential difference between the plates also increases and the energy in the capacitor increases.

c.

Positive work is done in moving the plates apart, so the energy stored in the capacitor increases.

d.

The capacitance decreases when the distance between the plates increases, so the energy stored in the capacitor decreases.

e.

Question does not provide sufficient data or is vague

Question number: 254

» Work, Energy and Power

Edit
MCQ▾

Question

An object is dropped from a height of 10 m above the ground. What is the ratio of the kinetic energy of the object when it has fallen halfway to its kinetic energy just before it hits the ground?

Choices

Choice (5)Response

a.

b.

c.

d.

e.

Question does not provide sufficient data or is vague

Developed by: