Consider the following statements:
1. A geostationary satellite is at an approximate height of 10000 km.
2. FM transmission of music is of very good quality because the atmospheric or man-made noises which are generally frequency variations can do little harm.
Which of the statements is/are correct?
Correct Answer: Option D
Explanation
1. Statement 1 is incorrect. A geostationary satellite orbits the Earth at an altitude of approximately 35,786 kilometers (about 36,000 km) above the equator, not 10,000 km. This specific altitude allows it to match the Earth's rotation period.
2. Statement 2 is correct. FM (Frequency Modulation) transmission is known for its very good quality, especially for music, because it is relatively immune to amplitude-based noise like atmospheric or man-made noises. Since noise primarily affects the amplitude of a radio wave, FM's method of encoding information in frequency variations makes it less susceptible to such interference compared to AM (Amplitude Modulation).
3. Based on the official answer key (B), only statement 2 is correct.
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