Work, Energy and Power-Potential Energy (NEET (NTA)-National Eligibility cum Entrance Test (Medical) Physics): Questions 1 - 5 of 11
Access detailed explanations (illustrated with images and videos) to 2247 questions. Access all new questions we will add tracking exam-pattern and syllabus changes. Subscription can be renewed yearly absolutely FREE! View Sample Explanation or View Features.
Rs. 550.00 or
How to register?
Question number: 1
» Work, Energy and Power » Potential Energy
Question
The potential energy between two atoms in a molecule is given by, where a and b are positive constant and x is the distance between the atoms. The atoms is an stable equilibrium, when-
Choices
Choice (4) | Response | |
---|---|---|
a. |
|
|
b. |
|
|
c. |
|
|
d. |
|
|
Question number: 2
» Work, Energy and Power » Potential Energy
Question
If g is the acceleration due to gravity on the earth’s surface, the gain in the potential energy of an object of mass m raised from surface of the earth to a height equal to radius R of the earth is - [M = mass of earth]
Choices
Choice (4) | Response | |
---|---|---|
a. |
|
|
b. |
|
|
c. |
|
|
d. |
|
|
Question number: 3
» Work, Energy and Power » Potential Energy
Question
A body of mass m moving with a velocity v 1 in the X-direction collides with another body of mass M moving in Y-direction with a velocity v 2. They coalesce into one body during collision. The magnitude and direction of the momentum of the final body, will be-
Choices
Choice (4) | Response | |
---|---|---|
a. |
|
|
b. |
|
|
c. |
|
|
d. |
|
|
Question number: 4
» Work, Energy and Power » Potential Energy
Question
A tennis ball dropped from a height of 2 m rebounds only 1.5 f meter after hitting the ground. What fraction of energy is lost in the impact?
Choices
Choice (4) | Response | |
---|---|---|
a. | 1/4 |
|
b. | 1/8 |
|
c. | 1/2 |
|
d. | 1/16 |
|
Question number: 5
» Work, Energy and Power » Potential Energy
Question
A tennis ball dropped from a height of 5 m rebounds only 2.5 f meter after hitting the ground. What fraction of energy is lost in the impact?
Choices
Choice (4) | Response | |
---|---|---|
a. | 2.45 |
|
b. | 1.26 |
|
c. | 0.5 |
|
d. | 0.466 |
|