26. …. Is India’s first three axis stabilised geostationary communication satellite ?
(a) APPLE
(b) Bhaskara
(c) Rohini
(d) Aryabhatta
27. As viewed from space, the average noise temperature of earth is :
(a) 110 K
(b) 254 K
(c) 400 K
(d) 600 K
28. The noise temperature of sky is about :
(a) 0 K
(b) 15 K
(c) 30 K
(d) 100 K
29. A typical signal strength received from a geosynchronous communication satellite is of the order of a few :
(a) Picowatts
(b) Millwatts
(c) Watts
(d) Kilowatts
30. Shanon’s law relates which of the following ?
(a) Noise power to bandwidth
(b) Antenna gain to frequency
(c) Transmission losses to noise
(d) Information carrying capacity to S/N ratio
Related Posts
Satellite Orbits » Exercise - 115. A geostationary satellite completes one orbit in : (a) 24 minutes (b) 24 hours (c) 24 days (d) None of these- Satellite Orbits » Exercise - 124. Geostationary satellites are placed in equatorial orbit at a height of approximately : (a) 1000 km (b) 15000 km (c) 25000 km (d) 36000 km
- Satellite Orbits » Exercise - 110. A geostationary satellite completes one orbit in : (a) 1 hour (b) 5 hour (c) 24 hour (d) 28 days
- Satellite Orbits » Exercise - 1 1. Epigee and perigee are the considerations when a satellite is in : (a) Lower orbit (b) Geostationary orbit (c) Circular orbit (d) Circular orbit
- Satellite Orbits » Exercise - 113. A satellite in low circular orbit than a geostationary orbit is known as ……. Satellite . (a) Slow moving (b) Fast moving (c) Passive (d) Active