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Physics CBSE Live product
Class 7 (2025-26)
Measurement of time and motion
Revision I - Measurement of time and motion
2.
Rules for writing units of time
Question:
2
m.
Correct the following:
1
.
The time recorded in the experiment was written as \(30\) \(S\).
Which is the correct form?
\(30\) \(sec\)
\(30\)\(S\)
\(30\)\(s\)
\(30\) \(s\)
2
.
The runner completed the race in \(10H\).
Which is the correct form?
\(10\) \(hrs\)
\(10\) \(Hr\)
\(10\) \(hr\)
\(10\) \(h\)
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