Advertisements
Advertisements
प्रश्न
As observed from earth, the sun appears to move in an approximate circular orbit. For the motion of another planet like mercury as observed from earth, this would ______.
पर्याय
be similarly true.
not be true because the force between earth and mercury is not inverse square law.
not be true because the major gravitational force on mercury is due to sun.
not be true because mercury is influenced by forces other than gravitational forces.
Advertisements
उत्तर
As observed from earth, the sun appears to move in an approximate circular orbit. For the motion of another planet like mercury as observed from earth, this would not be true because the major gravitational force on mercury is due to sun.
Explanation:
As observed from the earth, the sun appears to move in an approximately circular orbit. The gravitational force of attraction between the earth and the sun always follows the inverse square law. All planets move around the sun due to the huge gravitational force of the sun acting on them. The gravitational force on the mercury due to the earth is much smaller as compared to that acting on it due to the sun and hence it revolves around the sun and not around the earth.
APPEARS IN
संबंधित प्रश्न
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?
What is the importance of the universal law of gravitation?
Choose the correct answer from among the given ones:
For the problem 8.10, the direction of the gravitational intensity at an arbitrary point P is indicated by the arrow (i) d, (ii) e, (iii) f, (iv) g.
Can you think of two particles which do not exert gravitational force on each other?
Inside a uniform spherical shell
(a) the gravitational potential is zero
(b) the gravitational field is zero
(c) the gravitational potential is same everywhere
(d) the gravitational field is same everywhere
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.
Explain the following:
People often shake the branches of a tree for getting down its fruits.
Define one Newton. How much maximum acceleration can it produce in a mass of 1 kg?
Why don't you feel the force of attraction between your friend sitting close to you and yourself?
What does a force do in the following case?
You twist a piece of rubber.
Answer the following question.
State Newton’s law of gravitation and express it in vector form.
Solve the following problem.
Find the gravitational force between the Sun and the Earth.
Given Mass of the Sun = 1.99 × 1030 kg
Mass of the Earth = 5.98 × 1024 kg
The average distance between the Earth and the Sun = 1.5 × 1011 m.
How is the gravitational force between two point masses affected when they are dipped in water keeping the separation between them the same?
We can shield a charge from electric fields by putting it inside a hollow conductor. Can we shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?
Six point masses of mass m each are at the vertices of a regular hexagon of side l. Calculate the force on any of the masses.
Complete the chart below.
| F(N) | M1(kg) | M2(kg) | D(m) |
| (a) | 50 | 84 | 02 |
| 16 × 109 | 1.63 × 1022 | (b) | 34 |
Answer the following questions in reference to the figure below:
- Which relation is shown in the figure?
- What will happen if the mass of one of the objects is doubled?
If the mass of one object is doubled and distance remains the same, the gravitational force will ______.
A hollow spherical shell of uniform density exerts what gravitational force on a point mass placed inside it?
