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The time period of a satellite depends on _____
a) the mass of the satellite
b) radius of its orbit
c) both mass of satellite and radius of the orbit
d) neither mass of satellite nor radius of the orbit
Consider two satellites A and B. Both move around the earth in the same orbit but the mass of B is twice that of the mass of A.
a) Orbital speeds of A and B are equal
b) The orbital speed of A is twice that of B
c) The orbital speed of B is twice that of A
d) The kinetic energy of both A and B are equal
Two satellites of masseskg andkg revolve around the earth in circular orbits of radiiand 16R. What is the ratio of speeds of the two satellites?
A satellite is seen after every 8 hours. If it rotates opposite to that of the earth, what is its angular velocity about the centre of the earth? Assume the earth is perfectly spherical and the satellite is in the equatorial plane.
If a satellite is orbiting as close to the earth’s surface as possible _____
a) its speed is maximum
b) its speed is minimum
c) it’s kinetic energy will be minimum
d) it is not possible to quantify its kinetic energy
The radius of a planet is “R” and mass is “M”. A satellite revolves around it in an orbital radius of “r” and an orbital velocity “v”. How would you express the acceleration due to gravity on the surface of the planet?
A satellite revolves around a planet of radius “Q”. If the angular velocity of the satellite is “w” and the radius of the orbit is “4nQ”, where “n” is an integer, what is the acceleration due to gravity on the surface of the planet?
a) (w2 x (nQ) 3/Q2)
b) 16 (w2 x (nQ) 3/Q2)
c) 64(w2 x (nQ) 3/Q2)
d) 32(w2 x (nQ) 3/Q21)
The orbital velocity of a satellite orbiting the earth is half the escape velocity of the earth. What is the height above the surface of the earth at which it is orbiting? (Let the radius of the earth (R) =km).
a) 6400 km
b) 3200 km
c) 9600 km
d) 4800 km
The only natural satellite of India is the moon.
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