Multiple choice

Directions: The following question consists of two statements, one labelled as 'Assertion' and the other labelled as 'Reason. You are to examine these two statements carefully and decide if the Assertion and the Reason are individually true and if so, whether the Reason is the correct explanation of the Assertion. Assertion: The most common orbit used for satellite communications is the Geostationary Orbit (GEO). Reason: Geostationary satellites transmit signals without any delay.

Select your answer to this question using the codes given below.

  1. If both assertion and reasoning are true and statement 2 is the correct explanation for statement 1.

  2. If both assertion and reasoning are true but statement 2 is not the correct explanation for statement 1.

  3. If assertion is true but reasoning is wrong.

  4. If reasoning is correct but assertion itself is wrong.

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

GEO is the orbit at an altitude of about 36000 kms. It lies in the plane of earth's equator and its rotational period id equal to that of the earth. GEO is the most common orbit for launching communication satellites. Despite of many advantages, one of the disadvantages of the geostationary satellites is that due to their distance from the earth these satellites have a signal delay of around 0.24 seconds for complete send and receive path. This can create problem in telephony and data transmission.