✕
  1. Tardigrade
  2. Question
  3. Physics
  4. The time period of a spy satellite orbiting a few hundred kilometre above the earth's surface (R text earth =6400 km ) will approximately be:

Q. The time period of a spy satellite orbiting a few hundred kilometre above the earth's surface will approximately be:

Gravitation Report Error

Solution:

Speed of a satellite just above earth surface is
and

minute
is the time period of satellite revolving very close to earth's surface.
So time period of spy satellite must be slightly greater and so is the appropriate answer.

Questions from Gravitation

1. The binding energy of a satellite of mass m in a orbit of radius r is (R = radius of earth, g = acceleration due to gravity)

Maharashtra CET 2005

2. Assertion : Planet is a heavenly body revolving round the sun.
Reason : Star is luminous body made of gaseous material.

AIIMS 2002

3. If , and represent the work done in moving a particle from to along three different paths , and (as shown in fig) in the gravitational field of the point mass . Find the correct relation between , and

Maharashtra CET 2019

4. A projectile is fired from the surface of the Earth of radius with a velocity , where is the escape velocity and . Neglecting the air resistance, the orbital velocity of the projectile is

NTA Abhyas 2020

5. The effect of rotation of the Earth on the value of acceleration due to gravity is

NTA Abhyas 2020

Physics Most Viewed Questions

1. If and respectively denote energy and gravitational constant, then has the dimensions of:

NEET 2021 Physical World, Units and Measurements

2. The de Broglie wavelength of an electron moving with kinetic energy of is nearly

NEET 2020 Dual Nature of Radiation and Matter

3. A car starts from rest and accelerates at At , a ball is dropped out of a window by a person sitting in the car. What is the velocity and acceleration of the ball at ? (Take

NEET 2021 Motion in a Straight Line

4. A wheel with metallic spokes each long is rotated with a speed of in a plane perpendicular to a magnetic field of . The induced emf between the axle and rim of the wheel will be,

NEET 2020 Electromagnetic Induction

5. A barometer is constructed using a liquid (density What would be the height of the liquid column, when a mercury barometer reads ?
(density of mercury

NEET 2020 Mechanical Properties of Fluids

Latest Updates