Question

(a) An artificial satellite orbits in a circular path. The height of the satellite from the
surface of earth is 36,000 km. Such satellite is called geo - stationary. When the
satellite is exactly vertically upwards the ground station, it send the signal. How
much time will the signal take to reach the ground station. The speed of signal is 3 x
108 m/s​

Answer 1

Answer:

Explanation: t = d/v

               then t= 36 x 10^6/3 x 10^8

                          t = 0.12 sec

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Answer 2

Given:

An artificial satellite orbits in a circular path. The height of the satellite from the  surface of earth is 36,000 km.

The speed of signal is 3 x  108 m/s​

To find:

How  much time will the signal take to reach the ground station.

Solution:

From given, we have,

The distance between the satellite and the ground station is denoted as "S"

The formula is,

S = vt

where, v = speed of signal = 3 × 10⁸ m/s

t = time taken.

substituting the above values in the formula, we get,

36,000 km = 3 × 10⁸ m/s × t

36,000 km = 300000 km/s × t

36 = 300  × t

t = 36/300 = 0.12 s

Therefore, the time taken by the signal to reach the ground station is 0.12 s.