हिंदी

Choose the correct option. The weight of a particle at the center of the Earth is _______. - Physics

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प्रश्न

Choose the correct option.

The weight of a particle at the center of the Earth is _______.

विकल्प

  • infinite

  • zero

  • same as that at other places

  • greater than at the poles

MCQ

उत्तर

The weight of a particle at the center of the Earth is zero.

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Introduction to Gravitation
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 5: Gravitation - Exercises [पृष्ठ ९७]

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बालभारती Physics [English] 11 Standard Maharashtra State Board
अध्याय 5 Gravitation
Exercises | Q 1. (ii) | पृष्ठ ९७

संबंधित प्रश्न

The value of acceleration due to gravity is maximum at ________.


The gravitational potential due to the Earth is minimum at _______.


The linear momentum and position vector of the planet is perpendicular to each other at _________.


State Kepler’s three laws.


State Newton’s Universal law of gravitation.


Discuss the important features of the law of gravitation.


Explain how Newton verified his law of gravitation.


Assume that you are in another solar system and provided with the set of data given below consisting of the planets’ semi-major axes and time periods. Can you infer the relation connecting semi-major axis and time period?

Planet (imaginary) Time period (T) (in year) Semi-major axis (a) (in AU)
Kurinji 2 8
Mullai 3 18
Marutham 4 32
Neithal 5 50
Paalai 6 72

If the masses and mutual distance between the two objects are doubled, what is the change in the gravitational force between them?


If the angular momentum of a planet is given by `vec"L" = 5"t"^2hat"i" - 6"t"hat"j" + 3hat"k"`. What is the torque experienced by the planet? Will the torque be in the same direction as that of the angular momentum?


Suppose unknowingly you wrote the universal gravitational constant value as G = 6.67 × 1011. instead of the correct value, G = 6.67 × 10−11, what is the acceleration due to gravity g' for this incorrect G? According to this new acceleration due to gravity, what will be your weight W'?


The escape velocity of a body depends upon mass as ______ 


The escape velocity of a body on a planet 'A' is 12 kms–1. The escape velocity of the body on another planet 'B', whose density is four times and radius is half of the planet 'A', is ______.


The time period of a satellite revolving around the earth in a given orbit is 7 hours. If the radius of the orbit is increased to three times its previous value, then the approximate new time period of the satellite will be ______.


The mass density of a spherical galaxy varies as `"K"/"r"` over a large distance 'r' from its center. In that region, a small star is in a circular orbit of radius R. Then the period of revolution, T depends on R as :


Four identical particles of mass M are located at the corners of a square of side 'a'. What should be their speed if each of them revolves under the influence of the other's gravitational field in a circular orbit circumscribing the square?


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