मराठी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान इयत्ता ११

How is the gravitational force between two point masses affected when they are dipped in water keeping the separation between them the same?

Advertisements
Advertisements

प्रश्न

How is the gravitational force between two point masses affected when they are dipped in water keeping the separation between them the same?

टीपा लिहा
Advertisements

उत्तर

The gravitational force is unaffected by the medium, and it remains the same between the point masses irrespective of their surrounding. Therefore, when the two-point masses are dipped in water, the gravitational force between them remains the same.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 8: Gravitation - Exercises [पृष्ठ ६१]

APPEARS IN

एनसीईआरटी एक्झांप्लर Physics Exemplar [English] Class 11
पाठ 8 Gravitation
Exercises | Q 8.21 | पृष्ठ ६१

संबंधित प्रश्‍न

What is the magnitude of the gravitational force between the earth and a 1 kg object on its surface? (Mass of the earth is 6 × 1024 kg and radius of the earth is 6.4 × 106 m).


The earth and the moon are attracted to each other by gravitational force. Does the earth attract the moon with a force that is greater or smaller or the same as the force with which the moon attracts the earth? Why?


If the moon attracts the earth, why does the earth not move towards the moon?


If you compare the gravitational force on the Earth due to the Sun to that due to the Moon, you would find that the Sun’s pull is greater than the Moon’s pull. (You can check this yourself using the data available in the succeeding exercises). However, the tidal effect of the Moon’s pull is greater than the tidal effect of Sun. Why?


Choose the correct alternative:

 Acceleration due to gravity increases/decreases with increasing altitude.


A rocket is fired from the earth towards the sun. At what distance from the earth’s centre is the gravitational force on the rocket zero? Mass of the sun = 2 ×1030 kg, mass of the earth = 6 × 1024 kg. Neglect the effect of other planets etc. (orbital radius = 1.5 × 1011 m).


Write the three laws given by Kepler. How did they help Newton to arrive at the inverse square law of gravity?


A person sitting in a chair in a satellite feels weightless because


Four particles of equal masses M move along a circle of radius R under the action of their mutual gravitational attraction. Find the speed of each particle.


A solid sphere of mass m and radius r is placed inside a hollow thin spherical shell of mass M and radius R as shown in the following figure . A particle of mass m' is placed on the line joining the two centres at a distance x from the point of contact of the sphere and the shell. Find the magnitude of the resultant gravitational force on this particle due to the sphere and the shell if (a) r < x < 2r, (b) 2r < x < 2R and (c) x > 2R.


Write an expression for the gravitational force of attraction between two bodies of masses m1 and m2 separated by a distance r.


How will the force of gravitation between two objects change if the distance between them is:
Halved


Gravity is another kind of ________. It exerts all through the ________. The Sun's gravity keeps the ___________ in their orbits. Gravity can only be felt with very large ________.


Answer the following question.

What are the dimensions of the universal gravitational constant?


The value of universal gravitational constant (G) in the SI unit is ______.


Choose the wrong option.


Find the gravitational force of attraction between the ring and sphere as shown in the diagram, where the plane of the ring is perpendicular to the line joining the centres. If `sqrt8` R is the distance between the centres of a ring (of mass 'm')and a sphere (mass 'M') where both have equal radius 'R'.

 


The acceleration of the Moon towards the Earth is approximately ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×