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Answer the following question. What do you mean by geostationary satellite? - Physics

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प्रश्न

Answer the following question.

What do you mean by geostationary satellite?

टीपा लिहा

उत्तर

Some satellites that revolve around the Earth in the equatorial planes have the same sense of rotation as that of the Earth. They also have the same period of rotation as that of the Earth i.e., 24 hours. Due to this, these satellites appear stationary from the Earth’s surface and are known as geostationary satellites.

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पाठ 5: Gravitation - Exercises [पृष्ठ ९७]

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बालभारती Physics [English] 11 Standard Maharashtra State Board
पाठ 5 Gravitation
Exercises | Q 2. (v) | पृष्ठ ९७

संबंधित प्रश्‍न

A nut becomes loose and gets detached from a satellite revolving around the earth. Will it land on the earth? If yes, where will it land? If no, how can an astronaut make it land on the earth?


Consider earth satellites in circular orbits. A geostationary satellite must be at a height of about 36000 km from the earth's surface. Will any satellite moving at this height be a geostationary satellite? Will any satellite moving at this height have a time period of 24 hours?


No part of India is situated on the equator. Is it possible to have a geostationary satellite which always remains over New Delhi?


As the earth rotates about its axis, a person living in his house at the equator goes in a circular orbit of radius equal to the radius of the earth. Why does he/she not feel weightless as a satellite passenger does?


At what rate should the earth rotate so that the apparent g at the equator becomes zero? What will be the length of the day in this situation?


A Mars satellite moving in an orbit of radius 9.4 × 103 km takes 27540 s to complete one revolution. Calculate the mass of Mars.


Choose the correct option.

The binding energy of a satellite revolving around the planet in a circular orbit is 3 × 109 J. It's kinetic energy is ______.


Answer the following question.

Define the binding energy of a satellite.


Answer the following question.

What is periodic time of a geostationary satellite?


Derive an expression for the critical velocity of a satellite.


Answer the following question in detail.

State any four applications of a communication satellite.


Describe how an artificial satellite using a two-stage rocket is launched in an orbit around the Earth.


Answer the following question in detail.

Two satellites A and B are revolving round a planet. Their periods of revolution are 1 hour and 8 hour respectively. The radius of orbit of satellite B is 4 × 104 km. Find radius of orbit of satellite A.


Solve the following problem.

Calculate the speed of a satellite in an orbit at a height of 1000 km from the Earth’s surface.
(ME = 5.98 × 1024 kg, R = 6.4 × 106 m)


Solve the following problem.

Calculate the value of acceleration due to gravity on the surface of Mars if the radius of Mars = 3.4 × 103 km and its mass is 6.4 × 1023 kg.


The ratio of energy required to raise a satellite of mass 'm' to a height 'h' above the earth's surface of that required to put it into the orbit at same height is ______.

[R = radius of the earth]


Two satellites A and B go round a planet P in circular orbits having radii 4R and R respectively. If the speed of the satellite A is 3v, the speed of satellite B is ____________.


Two satellites of masses m1 and m2 (m1 > m2) are revolving round the earth in circular orbit of radii r1 and r2 (r1 > r2) respectively. Which of the following statements is true regarding their speeds v1 and v2?


Reason of weightlessness in a satellite is ____________.


A geostationary satellite is orbiting the earth at the height of 6R above the surface of earth. R being radius of earth. The time period of another satellite at a height of 2.5 R from the surface of earth is ____________.


Out of following, the only correct statement about satellites is ____________.


A satellite of mass 'm', revolving round the earth of radius 'r' has kinetic energy (E). Its angular momentum is ______.


A satellite is revolving in a circular orbit around the earth has total energy 'E'. Its potential energy in that orbit is ______.


Is it possibe for a body to have inertia but no weight?


Show the nature of the following graph for a satellite orbiting the earth. 

  1. KE vs orbital radius R
  2. PE vs orbital radius R
  3. TE vs orbital radius R.

A satellite revolves around a planet very close to its surface. By what maximum factor can its kinetic energy be increased suddenly, such that it revolves in orbit in the same way?


A satellite is revolving around a planet in a circular orbit close to its surface and ρ is the mean density and R is the radius of the planet, then the period of ______.

(G = universal constant of gravitation)


Two satellites are orbiting around the earth in circular orbits of same radius. One of them is 10 times greater in mass than the other. Their period of revolutions are in the ratio ______.


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