हिंदी

The value of G varies from place to place. - Science and Technology 1

Advertisements
Advertisements

प्रश्न

The value of G varies from place to place.

विकल्प

  • Right

  • Wrong

MCQ
सत्य या असत्य

उत्तर

This statement is Wrong.

Explanation:

The value of a gravitational constant (G) is always the same irrespective of place. However, according to Newton's law of universal gravitation, the acceleration of gravity (g) varies with mass and the distance from its centre.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 1: Gravitation - Right or Wrong sentence

संबंधित प्रश्न

Why does the velocity of a stone thrown vertically upwards decreases?


The value of g is highest at the equator.


Write scientific reason.

The weight of an object varies on different planets.


Write scientific reason.

The value of g at the centre of the earth is zero.


The ratio of masses of two planets is 2:3 and the ratio of their radii is 4:7 Find the ratio of their accelerations due to gravity.


The acceleration due to gravity on moon is `(1/6)^"th"` times the acceleration due to gravity on earth. If the ratio of the density of earth 'ρe' to the density of moon 'ρm' is `5/3`, then the radius of moon 'Rm' in terms of the radius of earth 'Re' is ______.


The radius of the earth is. 6400 km and that of mars is 3200 km. The mass of the earth is about 10 times the mass of mars. Weight of the object on the earth is 200 N. What will be its weight on the mars?


At a height R above the earth's surface, the gravitational acceleration is ______.

(R = radius of earth, g = acceleration due to gravity on earth's surface.)


The radius of the orbit of a geostationary satellite is (mean radius of the earth R, angular velocity about an axis in ω and acceleration due to gravity on earth's surface is (g) ______.


The force of attraction between two unit point masses separated by a unit distance is called


How does the force of attraction between the two bodies depend upon their masses and the distance between them? A student thought that two bricks tied together would fall faster than a single one under the action of gravity. Do you agree with his hypothesis or not? Comment.


Write if the following statement is correct or wrong.

The value of g is the same everywhere on the surface of the earth.


The moon has a mass of 1/81 that of the earth and a radius of 1/4 that of the earth. The escape speed from the surface of the earth is 11.2 km/s. The escape speed from the surface of the moon is ______.


A lift of mass 'm' is connected to a rope which is moving upward with maximum acceleration 'a'. For maximum safe stress, the elastic limit of the rope is 'T'. The minimum diameter of the rope is ______.

(g = gravitational acceleration)


The difference in the acceleration due to gravity at the pole and equator is ______.

(g = acceleration due to gravity, R = radius of the earth; θ = latitude, ω = angular velocity, cos0° = 1, cos90° = 0)


A uniform ring of mass M and radius r is placed directly above a uniform sphere of mass 8M and of same radius R. The centre of the ring is at a distance of d = `sqrt3​`R from the centre of the sphere. The gravitational attraction between the sphere and the ring is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×