Advertisements
Advertisements
प्रश्न
Find the minimum colatitude which can directly receive a signal from a geostationary satellite.
Advertisements
उत्तर
Consider that B is the position of the geostationary satellite.
In the given figure,
\[\phi\] is the latitude and θ is the colatitude of a place which can directly receive a signal from a geostationary satellite.
In triangle OAB, we have:
\[\cos \phi = \frac{6400}{42000}\]
\[ = \frac{16}{106} = \frac{8}{53}\]
\[i . e . , \phi = \cos^{- 1} \frac{8}{53}\]
\[ = \cos^{- 1} 0 . 15\]
\[\text { Now }, \theta = \frac{\pi}{2} - \phi\]
\[ \Rightarrow \theta = \frac{\pi}{2} - \cos^{- 1} 0 . 15\]
\[ \Rightarrow \theta = \sin^{- 1} 0 . 15\]
APPEARS IN
संबंधित प्रश्न
A spacecraft consumes more fuel in going from the earth to the moon than it takes for a return trip. Comment on this statement.
Two satellites A and B move round the earth in the same orbit. The mass of B is twice the mass of A.
What is the true weight of an object in a geostationary satellite that weighed exactly 10.0 N at the north pole?
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?
Answer the following question.
Why is a minimum two-stage rocket necessary for launching of a satellite?
Draw a labelled diagram to show different trajectories of a satellite depending upon the tangential projection speed.
Derive an expression for the binding energy of a body at rest on the Earth’s surface of a satellite.
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.
A planet has mass 6.4 × 1024 kg and radius 3.4 × 106 m. Calculate the energy required to remove an object of mass 800 kg from the surface of the planet to infinity.
An aircraft is moving with uniform velocity 150 m/s in the space. If all the forces acting on it are balanced, then it will ______.
The period of revolution of a satellite is ______.
The ratio of binding energy of a satellite at rest on earth's surface to the binding energy of a satellite of same mass revolving around the earth at a height h above the earth's surface is ______ (R = radius of the earth).
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 ______.
Artificial satellites are launched for all the following purposes EXCEPT ______.
Which of the following is the only natural satellite of the Earth?
Which application is mainly associated with polar satellites?
