The height of a geo-stationary satellite from the Earth's surface is approximately : (1) 36,000 km (2) 42,000 km (3) 30,000 km (4) None of these

The height of a geo-stationary satellite from the Earth's surface is approximately : (1) 36,000 km (2) 42,000 km (3) 30,000 km (4) None of these
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(1) 36,000 km Explanation: A geostationary orbit is a circular orbit 35,786 kilometres above the Earth's equator and following the direction of the Earth's rotation. Communications satellites and weather satellites are often given geostationary orbits, so that the satellite antennas that communicate with them do not have to move to track them, but can be pointed permanently at the position in the sky where they stay.
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The height of a geo-stationary satellite from the Earth’s surface is approximately : (1) 36,000 km (2) 42,000 km (3) 30,000 km (4) None of these

Description : The height of a geo-stationary satellite from the Earth’s surface is approximately : (1) 36,000 km (2) 42,000 km (3) 30,000 km (4) None of these

Last Answer :  36,000 km

What is the Height of a Geo-Stationary satellite from the surface of earth

Description : What is the Height of a Geo-Stationary satellite from the surface of earth

Last Answer : 36,000 km (nearly)

What is the Height of a Geo-Stationary satellite from the surface of earth?

Description : What is the Height of a Geo-Stationary satellite from the surface of earth?

Last Answer : 36,000 km (nearly)

At what height geo-synchr-onus orbit is located ? (1) 6 km (2) 1000 km (3) 3600 km (4) 36,000 km

Description : At what height geo-synchr-onus orbit is located ? (1) 6 km (2) 1000 km (3) 3600 km (4) 36,000 km

Last Answer : 36,000 km

Geo–stationary satellite revolves at– (1) any height (2) fixed height (3) height which depends upon its mass (4) height above pole

Description : Geo–stationary satellite revolves at– (1) any height (2) fixed height (3) height which depends upon its mass (4) height above pole 

Last Answer : fixed height

The altitudinal distance of a geostationary satellite from the earth is about: (A) 26,000 km (B) 30,000 km (C) 36,000 km (D) 44,000 km

Description : The altitudinal distance of a geostationary satellite from the earth is about: (A) 26,000 km (B) 30,000 km (C) 36,000 km (D) 44,000 km

Last Answer : Answer: Option C

Time period of Revolution for a Geo–stationary satellite is–

Description : Time period of Revolution for a Geo–stationary satellite is–

Last Answer : 24 Hours

Time period of Revolution for a Geo–stationary satellite is–

Description : Time period of Revolution for a Geo–stationary satellite is–

Last Answer : 24 Hours

Define geo-stationary orbit and the geo-stationary satellite.

Description : Define geo-stationary orbit and the geo-stationary satellite.

Last Answer : Geostationary Orbit: A geostationary orbit, geostationary Earth orbit is a circular geosynchronous orbit 35,786 kilometers (22,236 mi) above the Earth's equator. Geostationary satellite: A geostationary ... such a satellite appears nearly stationary in the sky as seen by a ground-based observer

The angular velocity of geo-stationary satellite is

Description : The angular velocity of geo-stationary satellite is • Equal to the angular velocity of earth. • Less than the angular velocity of earth. • More than the angular velocity of earth • None of the above.

Last Answer : The angular velocity of geo-stationary satellite is Equal to the angular velocity of earth.

Calculate the speed of a satellite in an orbit at a height of 1000 km from the Earth’s surface.

Description : Calculate the speed of a satellite in an orbit at a height of 1000 km from the Earth’s surface.

Last Answer : 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.

Orbital radius of GPS satellites is approximately: (A) 15,200 km (B) 26,600 km (C) 18,400 km (D) 36,000 km

Description : Orbital radius of GPS satellites is approximately: (A) 15,200 km (B) 26,600 km (C) 18,400 km (D) 36,000 km

Last Answer : Answer: Option B

The energy that can harness heat stored below the earth’s surface is known as ; (1) thermal energy (2) nuclear energy (3) tidal energy (4) geo-thermal energy

Description : The energy that can harness heat stored below the earth’s surface is known as ; (1) thermal energy (2) nuclear energy (3) tidal energy (4) geo-thermal energy

Last Answer : geo-thermal energy

What is the free space attenuation of a satellite communications system operating at 36,000 km above the earth at 5.0 GHz? A. 198 dB B. 202 dB C. 142 dB D. 138 dB

Description : What is the free space attenuation of a satellite communications system operating at 36,000 km above the earth at 5.0 GHz? A. 198 dB B. 202 dB C. 142 dB D. 138 dB

Last Answer : A. 198 dB

What is the approximate height of a geostationary satellite from the surface of the earth? (1) 981 km (2) 15000 km (3) 35000 km (4) 55000 km

Description : What is the approximate height of a geostationary satellite from the surface of the earth? (1) 981 km (2) 15000 km (3) 35000 km (4) 55000 km

Last Answer : (3) 35000 km Explanation: A satellite in such an orbit is at an altitude of approximately 35,786 km (22,236 mi) above mean sea level.

A satellite beam that covers almost 42.4% of the earths surface. A. Zone beam B. Hemispheric beam C. Spot beam D. Global beam

Description : A satellite beam that covers almost 42.4% of the earths surface. A. Zone beam B. Hemispheric beam C. Spot beam D. Global beam

Last Answer : D. Global beam

A satellite beam that covers almost 42.4% of earths surface. A. Spot beam B. Global beam C. Zone beam D. Hemispheric beam

Description : A satellite beam that covers almost 42.4% of earths surface. A. Spot beam B. Global beam C. Zone beam D. Hemispheric beam

Last Answer : B. Global beam

A client-server system uses a satellite network, with the satellite at a height of 40,000 kms. What is the best-case delay in response to a request? (Note that the speed of light in air is 3,00,000 km/second). (A) 133.33 m sec (B) 266.67 m sec (C) 400.00 m sec (D) 533.33 m sec

Description : A client-server system uses a satellite network, with the satellite at a height of 40,000 kms. What is the best-case delay in response to a request? (Note that the speed of light in air is 3,00,000 km/second). (A) 133.33 m sec (B) 266.67 m sec (C) 400.00 m sec (D) 533.33 m sec

Last Answer : (D) 533.33 m sec Explanation: The request has to go up and down, and the response has to go up and down. The total path length traversed is thus 160.000 km. The speed of light in air and vacuum is 300,000 km/sec, so the propagation delay alone is 160,000/300,000 sec or about 533 msec. 

The satellites which revolve in such an orbit, so that they move with earth rotation are called: A. Geo satellites B. Stationary satellites C. Geo-stationary satellites D. Earth-space satellites

Description : The satellites which revolve in such an orbit, so that they move with earth rotation are called: A. Geo satellites B. Stationary satellites C. Geo-stationary satellites D. Earth-space satellites

Last Answer : ANSWER: C

The satellites which revolve in such an orbit, so that they move with earth rotation are called: A. Geo satellites B. Stationary satellites C. Geo-stationary satellites D. Earth-space satellites

Description : The satellites which revolve in such an orbit, so that they move with earth rotation are called: A. Geo satellites B. Stationary satellites C. Geo-stationary satellites D. Earth-space satellites

Last Answer : ANSWER: C

The satellites which revolve in such an orbit, so that they move with earth rotation are called: A. Geo satellites B. Stationary satellites C. Geo-stationary satellites D. Earth-space satellites

Description : The satellites which revolve in such an orbit, so that they move with earth rotation are called: A. Geo satellites B. Stationary satellites C. Geo-stationary satellites D. Earth-space satellites

Last Answer : ANSWER: C

There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called troposphere. The rate at which air temperature in the troposphere gradually decreases with height is about __________ °C/km. (A) 0.05 (B) 1 (C) 6.5 (D) 15

Description : There are five concentric layers within the atmosphere which is differentiated on the basis of temperature. The atmospheric layer which lies close to the earth's surface in which human being along with other organisms live is called ... is about __________ °C/km. (A) 0.05 (B) 1 (C) 6.5 (D) 15

Last Answer : (C) 6.5

What height must a satellite be placed above the surface of the earth in order for its rotation to be equal to earth’s rotation? A. 26,426.4 miles B. 27,426.4 miles C. 23,426.4 miles D. 22,426.4 miles

Description : What height must a satellite be placed above the surface of the earth in order for its rotation to be equal to earth’s rotation? A. 26,426.4 miles B. 27,426.4 miles C. 23,426.4 miles D. 22,426.4 miles

Last Answer : D. 22,426.4 miles

An artificial satellite is moving in a circular orbit of radius 42.250 km (approx). Calculate its linear velocity if takes 24 hour to revolve around earth.? -Science

Description : An artificial satellite is moving in a circular orbit of radius 42.250 km (approx). Calculate its linear velocity if takes 24 hour to revolve around earth.? -Science

Last Answer : Given r =42.250 km , T= 24 hour Linear velocity in circular motion is given by v=2πrT=2×3.14×42.25024=11.05km/hrv=2πrT=2×3.14×42.25024=11.05km/hr

Which one of the following statements is correct regarding the GPS satellites? (A) The nominal altitude is about 20,200 km (B) The inclination of axis satellite is 55° (C) The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz) (D) All of these

Description : Which one of the following statements is correct regarding the GPS satellites? (A) The nominal altitude is about 20,200 km (B) The inclination of axis satellite is 55° (C) The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz) (D) All of these

Last Answer : Answer: Option D

kajal rides his scooter 14km at an average speed of 16 km/hr and again travels 16km at an average speed of 14 km/hr. What is her average speed for the entire trip approximately? a) 15.36 km/hr b) 17.46 km/hr c) 13.56 km/hr d) 14.86 km/hr

Description : kajal rides his scooter 14km at an average speed of 16 km/hr and again travels 16km at an average speed of 14 km/hr. What is her average speed for the entire trip approximately? a) 15.36 km/hr b) 17.46 km/hr c) 13.56 km/hr d) 14.86 km/hr

Last Answer : D Total distance travelled =14+16=30Km Time taken to travel 14 km at an average speed of 16 km/hr =14/16=7/8 Hr Time taken to travel 16 km at an average speed of 14 km/hr =16/14=8/7 hr Total time taken = ... /Total time taken =30/(7/8+8/7) =30/(113/56) =30*56/113=1680/113 =14.86 km/hr

The escape velocity from the earth’s surface is about 1. 30 km/sec 2. 6 km/sec 3. 11.2 km/sec 4. 300 km/sec 15. The radiant energy of the sun is due to (a) Nuclear fission (b) Nuclear fusion (c) Sinking of the sun (d) Violent explosions

Description : The escape velocity from the earth’s surface is about 1. 30 km/sec 2. 6 km/sec 3. 11.2 km/sec 4. 300 km/sec 15. The radiant energy of the sun is due to (a) Nuclear fission (b) Nuclear fusion (c) Sinking of the sun (d) Violent explosions

Last Answer : Ans:(c)

The normal altitude of GPS satellite is about (A) 16,200 km (B) 20,200 km (C) 24,400 km (D) 36,100 km

Description : The normal altitude of GPS satellite is about (A) 16,200 km (B) 20,200 km (C) 24,400 km (D) 36,100 km

Last Answer : Answer: Option B

A round viewing window with a 20 centimeter diameter is installed in a tank at the Shedd Aquarium. It is 5 meters below the water surface. The force on the window is approximately: w) 1,500 Newtons x) 10,000 Newtons y) 25,000 Newtons z) 50,000 Newtons

Description : A round viewing window with a 20 centimeter diameter is installed in a tank at the Shedd Aquarium. It is 5 meters below the water surface. The force on the window is approximately: w) 1,500 Newtons x) 10,000 Newtons y) 25,000 Newtons z) 50,000 Newtons

Last Answer : ANSWER: W -- 1,500 NEWTONS

What is the propagation delay when a signal is transmitter by an earth station to a geosynchronous satellite about 38,500 km above earth’s equator and then received by the same earth station? A. 256 msec B. 128 msec C. 300 msec D. 400 msec

Description : What is the propagation delay when a signal is transmitter by an earth station to a geosynchronous satellite about 38,500 km above earth’s equator and then received by the same earth station? A. 256 msec B. 128 msec C. 300 msec D. 400 msec

Last Answer : A. 256 msec

Write short notes on (a) Communication Satellite: (b) Geo-thermal Energy: (c) Ultrasonic:

Description : Write short notes on (a) Communication Satellite: (b) Geo-thermal Energy: (c) Ultrasonic:

Last Answer : (a) Communication Satellite: A communications satellite is an artificial satellite stationed in space for the purposes of telecommunications. Modern communications satellites use geosynchronous orbits, Molniya ... be used to break up kidney stones or for cataract treatment by phacoemulsification.

For a space wave transmission, the radio horizon distance of a receiving antenna with a height of 64 meters is approximately A. 8 km B. 32 km C. 64 km D. 256 km

Description : For a space wave transmission, the radio horizon distance of a receiving antenna with a height of 64 meters is approximately A. 8 km B. 32 km C. 64 km D. 256 km

Last Answer : B. 32 km

For a space wave transmission, the radio horizon distance of a transmitting antenna with a height of 100 meters is approximately:A. 10 km B. 40 km C. 100 km D. 400 km

Description : For a space wave transmission, the radio horizon distance of a transmitting antenna with a height of 100 meters is approximately: A. 10 km B. 40 km C. 100 km D. 400 km

Last Answer : B. 40 km

The spoon dropped by an astronaut in a satellite will – (1) Fall to the floor (2) Remain stationary (3) Continue to follow the motion of the satellite (4) Move tangentially away

Description : The spoon dropped by an astronaut in a satellite will – (1) Fall to the floor (2) Remain stationary (3) Continue to follow the motion of the satellite (4) Move tangentially away

Last Answer : (3) Continue to follow the motion of the satellite Explanation: An orbiting satellite is a projectile in the sense that the only force acting upon an orbiting satellite is the force of gravity. A ... (such as a satellite) would continue in motion with the same speed and in the same direction.

The spoon dropped by an astronaut in a satellite will (1) fall to the floor (2) remain stationary (3) continue to follow the motion of the satellite (4) move tangentially away

Description : The spoon dropped by an astronaut in a satellite will (1) fall to the floor (2) remain stationary (3) continue to follow the motion of the satellite (4) move tangentially away

Last Answer :  continue to follow the motion of the satellite

A rocket is fired vertically from the ground with a resultant vertical acceleration of 10 m/sec the fuel is finished in one minute and it continues to move up. The maximum height reached will be a.2 km b.20 km c.36 km d.10 km e.80 km

Description : A rocket is fired vertically from the ground with a resultant vertical acceleration of 10 m/sec the fuel is finished in one minute and it continues to move up. The maximum height reached will be a.2 km b.20 km c.36 km d.10 km e.80 km

Last Answer : a. 2 km

A receiver is located 64 km from a space wave transmitting antenna that is 100 meters high. Find the required height of the receiving antenna. A. 36 meters high B. 64 meters high C. 100 meters high D. 182.25 meters high

Description : A receiver is located 64 km from a space wave transmitting antenna that is 100 meters high. Find the required height of the receiving antenna. A. 36 meters high B. 64 meters high C. 100 meters high D. 182.25 meters high

Last Answer : A. 36 meters high

What is the orbit height of a GPS satellite? A. 10,898 nmi B. 10,898 mi C. 10,898 km D. 10, 898 m

Description : What is the orbit height of a GPS satellite? A. 10,898 nmi B. 10,898 mi C. 10,898 km D. 10, 898 m

Last Answer : A. 10,898 nmi

Earth's atmosphere is an envelope of gases extending to a height of – (1) 100 km (2) 150 km (3) 200 km (4) 300 km

Description : Earth's atmosphere is an envelope of gases extending to a height of – (1) 100 km (2) 150 km (3) 200 km (4) 300 km

Last Answer : (3) 200 km Explanation: The atmosphere of the. Earth is an envelope of gases extending to a height of 200km.

Earth’s atmosphere is an envelope of gases extending to a height of (1) 100 km (2) 150 km (3) 200 km (4) 300 km

Description : Earth’s atmosphere is an envelope of gases extending to a height of (1) 100 km (2) 150 km (3) 200 km (4) 300 km

Last Answer : 200 km

1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50'. What number is missing? -Riddles

Description : 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50'. What number is missing? -Riddles

Last Answer : 22

Which of the following Articles contain Directive Principles of State Policy? (a) 30 to 49 (b) 36 to 51 (c) 42 to 56 (d) 28 to 48

Description : Which of the following Articles contain Directive Principles of State Policy? (a) 30 to 49 (b) 36 to 51 (c) 42 to 56 (d) 28 to 48

Last Answer : (b) 36 to 51

5, 8, 12, 18, 24, 30, 36, 42, ____ a) 52 b) 46 c) 48 d) 54 e) 56

Description : 5, 8, 12, 18, 24, 30, 36, 42, ____ a) 52 b) 46 c) 48 d) 54 e) 56

Last Answer : Each term in the series is the addition of successive prime numbers. Like Prime numbers are2, 3, 5, 7, 11, 13, 17, 19, 23, 29 and so on. So first term is addition of (2 + 3). Ie 5, then second term is (3 + 5) ie ... +17)ie. 30, then (17+19)ie.36, then (19+23)ie., 42, then (23+29)i.e. 52. Answer: a)

Box A contains wheat worth Rs.30 per kg and box B contains wheat worth Rs.40 per kg.If both A and B are mixed in the the ratio 4:7 then the price of mixture per kg is A)36.36 B)35.80 C)42.50 D)31.30

Description : Box A contains wheat worth Rs.30 per kg and box B contains wheat worth Rs.40 per kg.If both A and B are mixed in the the ratio 4:7 then the price of mixture per kg is A)36.36 B)35.80 C)42.50 D)31.30

Last Answer : A)36.36

The mean of the ages of father and his son is 27 years. After 18 years, father will be twice as old as his son. Their present ages are (A) 42, 12 (B) 40, 14 (C) 30, 24 (D) 36, 18

Description : The mean of the ages of father and his son is 27 years. After 18 years, father will be twice as old as his son. Their present ages are (A) 42, 12 (B) 40, 14 (C) 30, 24 (D) 36, 18

Last Answer : Answer: A

Two numbers are in the ration 3:5. If 9 is subtracted from the numbers, the ratio becomes 12:23. The numbers are (A) 30, 50 (B) 36, 60 (C) 33, 55 (D) 42, 70

Description : Two numbers are in the ration 3:5. If 9 is subtracted from the numbers, the ratio becomes 12:23. The numbers are (A) 30, 50 (B) 36, 60 (C) 33, 55 (D) 42, 70

Last Answer : Answer: C

The average age of 160 boys in a class is 58 yrs. The average group of 30 boys in the class is 42 yrs and the average of another group of 50 boys in the class is 36 years. What is the average age of the remaining boys? A) 72.58 B) 74.25 C) 77.75 D) 75.68

Description : The average age of 160 boys in a class is 58 yrs. The average group of 30 boys in the class is 42 yrs and the average of another group of 50 boys in the class is 36 years. What is the average age of the remaining boys? A) 72.58 B) 74.25 C) 77.75 D) 75.68 

Last Answer : C) Total age of 160 boys = 160* 58= 9280 total age of 30 boys = 30 * 42= 1260 total age of next 50boys = 50 * 36= 1800 average of the remaining boys = [(9280-{1260+1800})/[160 - (30 + 50)] =>9280-3060/80 =>6220/80 =77.75yrs

Laura weighs 50 Newtons and pushes against a stationary brick wall that weighs 1,000 Newtons. Her arm is two-thirds of a meter long. According to the laws of physics, how much work does she do?

Description : Laura weighs 50 Newtons and pushes against a stationary brick wall that weighs 1,000 Newtons. Her arm is two-thirds of a meter long. According to the laws of physics, how much work does she do? 

Last Answer : ANSWER: NONE or ZERO

Two trains 120 m and 80 m in length are running in opposite directions with velocities 42 km/h and 30 km/h respectively.

Description : Two trains 120 m and 80 m in length are running in opposite directions with velocities 42 km/h and 30 km/h respectively.

Last Answer : Two trains 120 m and 80 m in length are running in opposite directions with velocities 42 km/h ... In what time will they completely cross each other?

If the coefficient of friction on the road surface is 0.15 and a maximum super-elevation 1 in 15 is provided, the maximum speed of the vehicles on a curve of 100 metre radius, is (A) 32.44 km/hour (B) 42.44 kg/hour (C) 52.44 km/hour (D) 62.44 km/hour

Description : If the coefficient of friction on the road surface is 0.15 and a maximum super-elevation 1 in 15 is provided, the maximum speed of the vehicles on a curve of 100 metre radius, is (A) 32.44 km/hour (B) 42.44 kg/hour (C) 52.44 km/hour (D) 62.44 km/hour

Last Answer : Answer: Option C