- 1(current)
Q. No.Two particles of masses \(M,m\) are separated by a distance \(r.\) Their relative acceleration due to their mutual gravitational forces is (of magnitude):
| 1. | \(\Large\frac{2GMm}{r^2(M+m)}\) | 2. | \(\Large\frac{GMm}{r^2(M+m)}\) |
| 3. | \(\Large\frac{G(M\text - m)}{r^2}\) | 4. | \(\Large\frac{G(M\text + m)}{r^2}\) |
Subtopic: Â Acceleration due to Gravity |
Level 3: 35%-60%
To unlock all the explanations of this course, you need to be enrolled.
Hints
To unlock all the explanations of this course, you need to be enrolled.
Unlock IMPORTANT QUESTION
This question was bookmarked by 5 NEET 2025 toppers during their NEETprep journey. Get Target Batch to see this question.
✨ Perfect for quick revision & accuracy boost
Buy Target Batch
Access all premium questions instantly
If a particle is projected vertically upward with a speed \(u,\) and rises to a maximum altitude \(h\) above the earth's surface then:
(\(g=\) acceleration due to gravity at the surface)
| 1. | \(h>\dfrac{u^2}{2g}\) |
| 2. | \(h=\dfrac{u^2}{2g}\) |
| 3. | \(h<\dfrac{u^2}{2g}\) |
| 4. | Any of the above may be true, depending on the earth's radius |
Subtopic: Â Acceleration due to Gravity |
Level 3: 35%-60%
To unlock all the explanations of this course, you need to be enrolled.
Hints
To unlock all the explanations of this course, you need to be enrolled.
Consider the earth to be a uniform solid sphere of radius \(R,\) and take the acceleration due to gravity to be \(g,\) on its surface. Ignore the rotation of the earth. At what distance from the surface of the earth will the gravitational acceleration fall to \(\Large\frac{g}{9}\small,\) outside?
| 1. | \(\dfrac{R}{3}\) | 2. | \(3R\) |
| 3. | \(\dfrac{2R}{3}\) | 4. | \(2R\) |
Subtopic: Â Acceleration due to Gravity |
 68%
Level 2: 60%+
To unlock all the explanations of this course, you need to be enrolled.
Hints
To unlock all the explanations of this course, you need to be enrolled.
- 1(current)
Q. No.
© 2025 GoodEd Technologies Pvt. Ltd.