SSC JE Mechanical Engineering 2017 Set 2 Paper

Question : 85 of 200

Marks: +1, -0

Consider the following pairs:

\table \Event ,\text"Time interval ( Seconds)";1. \text"Period of X-rays",10^{–8};2. \text"Life time of an excited state of an atom " ,10^{–1};3. \text"Time between successive human heartbeats" ,10^0;4. \text"Rotation period of the earth", 10^5

Which of the above pairs are correctly matched?

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