Question

on decreasing the height of a satellite,its time period will...

Answer 1

increase as height is inversely proptional to time

Answer 2

On decreasing the height of a satellite, its time period will decrease.

The height of a satellite that means its distance from the earth determines how fast the satellite moves around the earth. The satellite's motion is controlled by the gravity of the earth. The satellite which is closer to the earth experiences a stronger pull of gravity and moves more quickly. For example, NASA's Aqua satellite needs 99 minutes to orbit the earth at a height of 705 km. While a weather satellite takes 23 hours, 56 minutes and 4 seconds to go around the earth as it is at a height of 36,000 km from the earth's surface. The moon is at a height of 3,84.403 km from the centre of the earth and takes 28 days to go around the earth.