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Physics CBSE Live product
Class 7 (2025-26)
Measurement of time and motion
Revision III - Measurement of time and motion
9.
Time measuring devices
Question:
3
m.
Match the following columns:
Answer variants:
Uses mechanical, quartz, or electronic systems
The bowl sinks after a fixed time interval
Water either drips out or fills up a container
Column A
Column B
1.
Water clock
2.
Floating bowl water clock
3.
Modern clock
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