On which periodic phenomenon are the following measures of time based: Class 8
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On which periodic phenomenon are the following measures of time based: Class 8
On which periodic phenomenon are the following measures of time based: Class 8
(i) day
(ii) month
(iii) year?
Answer:
(i) Day: Earth's rotation on its axis (24 hours).
(ii) Month: Moon's revolution (phases of the Moon) (approximately 29.5 days).
(iii) Year: Earth's revolution around the Sun (approximately 365.25 days).