हिंदी
कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान कक्षा ११

A Satellite is Orbiting the Earth Close to Its Surface. a Particle is to Be Projected from the Satellite to Just Escape from the Earth. the Escape Speed from the Earth

Advertisements
Advertisements

प्रश्न

A satellite is orbiting the earth close to its surface. A particle is to be projected from the satellite to just escape from the earth. The escape speed from the earth is ve. Its speed with respect to the satellite

विकल्प

  • will be less than \[\nu_e\]

  • will be more than \[\nu_e\]

  • will be equal to \[\nu_e\]

  • will depend on the direction of projection.

MCQ
Advertisements

उत्तर

will depend on the direction of projection.

For example a body projected vertically requires less escape velocity than a body projected at an angle with the vertical.

shaalaa.com
  क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
अध्याय 11: Gravitation - MCQ [पृष्ठ २२५]

APPEARS IN

एचसी वर्मा Concepts of Physics Volume 1 and 2 [English]
अध्याय 11 Gravitation
MCQ | Q 17 | पृष्ठ २२५

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?


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?


Two satellites going in equatorial plane have almost same radii. As seen from the earth one moves from east one to west and the other from west to east. Will they have the same time period as seen from the earth? If not which one will have less time period?


A body stretches a spring by a particular length at the earth's surface at the equator. At what height above the south pole will it stretch the same spring by the same length? Assume the earth to be spherical.


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.


State the conditions for various possible orbits of satellite depending upon the horizontal/tangential speed of projection.


Answer the following question in detail.

Obtain an expression for the critical velocity of an orbiting satellite. On what factors does it depend?


There is no atmosphere on moon because ____________.


What is the minimum energy required to launch a satellite of mass 'm' from the surface of the earth of mass 'M' and radius 'R' at an altitude 2R?


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 ____________.


The ratio of energy required to raise a satellite to a height `(2R)/3` above earth's surface to that required to put it into the orbit at the same height is ______.

R = radius of the earth


A satellite is to revolve round the earth in a circle of radius 9600 km. The speed with which this satellite be projected into an orbit, will be ______.


A geostationary satellite is orbiting the earth at a height 6R above the surface of the earth, where R is the radius of the earth. This time period of another satellite at a height (2.5 R) from the surface of the earth is ______.


The period of revolution of a satellite is ______.


An artificial satellite is moving in a circular orbit around the earth with a speed equal to half the magnitude of escape velocity from the earth. If the satellite is stopped in its orbit and allowed to fall freely onto the earth, the speed with which it hits the surface ______ km/s.

[g = 9.8 ms-2 and Re = 6400 km]


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)


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×