Home
Class 12
PHYSICS
An artificial satellite of Earth nears t...

An artificial satellite of Earth nears the end of its life due to air resistance. While still in orbit:

A

(a)`1Omega`

B

(b)`2Omega`

C

(c)`0.5 Omega`

D

(d)`1.5Omega`

Text Solution

Verified by Experts

In Series current `i_s=(2E)/(2+2r)`, In parallel current `i_p=E/(2+r/2)=(2E)/(4+r)`
As `i_s=i_p , (2E)/(2+2r(=(2E)/(4+r) implies r=2Omega`
Promotional Banner

Topper's Solved these Questions

  • DC CIRCUIT

    VMC MODULES ENGLISH|Exercise LEVEL-1 DAILY TUTORIAL SHEET-3|15 Videos
  • DC CIRCUIT

    VMC MODULES ENGLISH|Exercise LEVEL-1 DAILY TUTORIAL SHEET-4|15 Videos
  • DC CIRCUIT

    VMC MODULES ENGLISH|Exercise LEVEL-1 DAILY TUTORIAL SHEET-1|15 Videos
  • CURRENT ELECTRICITY

    VMC MODULES ENGLISH|Exercise IN-CHAPTER EXERCISE-F|10 Videos
  • DYNAMICS OF A PARTICLE

    VMC MODULES ENGLISH|Exercise JEE Advance (Archive) Level - II (SINGLE OPTION CORRECT TYPE )|31 Videos

Similar Questions

Explore conceptually related problems

An artificial satellite of the earth releases a packet. If air resistance is neglected, the point where the packet will hit, will be

An artificial satellite of the earth is launched in circular orbit in the equatorial plane of the earth and the satellite is moving from west to east. With respect to a person on the equator, the satellite is completing one round trip in 24 h . Mass of the earth is M=6xx10^(24)kg. For this situation the orbital radius of the satellite is

An artificial satellite is orbiting around the earth with the speed of 4 km s^(-1) at a distance of 10^4 km from the earth. Calculate its centripetal acceleration.

Figure shows the path of a projectile thrown near the surface of earth in the absence of air resistance. If the air resistances is taken into consideration , then

An artificial satellite in the presence of frictional forces will move into an orbit closer to the earth and may have increased kinetic energy. Explain this.

The orbital velocity of an artifical satellite in a cirular orbit above the earth's surface at a distance equal to radiu of earth is v. For a satellite orbiting at an altitude half of earth's radius, orbital velocity is

What would happen to an artificial satellite, if its orbital velocity is slightly decreased due to some defects in it?

Should the speed of two artificial satellites of the earth having the different masses but the same orbital radius be the same?

Statement-1: The plane of the orbit of an artificial satellite must contain the centre of the Earth. Statement-2: For an artificial satellite, the necessary centripetal force is provided by gravity.

An artificial satellite is made to move in circular orbits of different radii around the earth. The variations of its K.E., P.E. and total energy (E) in different orbits is shown in the figure by different curves. Then for the satellites