Question

While measuring the time take by the earth to complete 1 revolution, Rahul takes the unit “ second” to do so.
Has he taken an appropriate unit to measure the quantity? Give reason

Answer 1

Earth 1 revolution

Explanation:

• If we calculate the time take by Earth to complete 1 revolution in seconds it would be 31,556,926.08 sec that is too hard to memorize and say while having a conversation.
• So in order to avoid this problem, we have other units that we can use for appropriate remembering the time taken by Earth that is 365 days, 5 hours, 59 minutes, 16 seconds which is approximately 365 days= 1 year. Thus, he should take days as a proper unit to measure the quantity.