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प्रश्न
The value of universal gravitational constant (G) in the SI unit is ______.
विकल्प
6.673 × 10-11 Nm2/kg2
6.673 × 1011 Nm/kg
9.673 × 10-11 Nm/kg
9.673 × 10-11 Nm2/kg2
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उत्तर
The value of universal gravitational constant (G) in the SI unit is 6.673 × 10-11 Nm2/kg2.
Explanation:
This constant appears in Newton's law of gravitation and determines the strength of the gravitational force between two masses.
संबंधित प्रश्न
What happens to the force between two objects, if the distance between the objects is doubled and tripled?
What happens to the force between two objects, if the masses of both objects are doubled?
Choose the correct alternative:
Acceleration due to gravity is independent of mass of the earth/mass of the body.
Four particles having masses m, 2m, 3m and 4m are placed at the four corners of a square of edge a. Find the gravitational force acting on a particle of mass m placed at the centre.
Three equal masses m are placed at the three corners of an equilateral triangle of side a. Find the force exerted by this system on another particle of mass m placed at (a) the mid-point of a side, (b) at the centre of the triangle.
State whether the gravitational force between two masses is attractive or repulsive ?
A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2 , find :
the final velocity of the ball on reaching the ground .
A ball is thrown vertically upwards. It goes to a height 20 m and then returns to the ground. Taking acceleration due to gravity g to be 10 ms-2 , find :
the total time of journey of the ball .
How will the force of gravitation between two objects change if the distance between them is:
Infinite
How will the force of gravitation between two objects change if the distance between them is:
Almost zero
Where will you weigh more: at the moon's surface or at the earth's surface?
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 ________.
Explain the difference between g and G.
State Newton's law of gravitation. What is the difference between:
g and G?
Show that gravity decreases at higher altitudes.
The gravitational force between two bodies is directly proportional to the product of the masses of those bodies and is _______ of the distance between them.
The gravitational force between a hollow spherical shell (of radius R and uniform density) and a point mass is F. Show the nature of F vs r graph where r is the distance of the point from the centre of the hollow spherical shell of uniform density.
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.
Two particles of equal mass 'm' go around a circle of radius R under the action of their mutual gravitational attraction. The speed of each particle with respect to its centre of mass is ______.
Observe the figure and answer the questions:
- State Newton's universal law of gravitation.
- If the distance between the two bodies is tripled, how will the gravitational force between them change?
- What will happen to gravitational force, if mass of one of the object is doubled?
