| 1. One revolution of moon around the earth is called sidereal month. |
| 2. Moon's period of revolution with reference to sun is known as synoptic month. |
A) ?1 only?????????? ??????????????
B) ?2 only
C) ?Both 1 and 2???? ???????????
D) ?Neither 1 nor 2
Correct Answer: C
Solution :
?The moon revolves around the earth on an elliptical path and completes one revolution in 27 days, 7 hours 43 minutes and 11.6 seconds or roughly\[27\frac{1}{3}\,\]days. This period is called sidereal month. The moon's period of revolution with reference to sun is 29 days, 12 hours 44 minutes 2.8 seconds or roughly 29.53 days. This period is known as synoptic month.
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