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Unit - 4.1 Simple Machine And Their Importance — PHYSICS STD 6 — Question

ICSE BoardEnglish MediumSTD 6PHYSICSUnit - 4.1 Simple Machine And Their Importance1 Mark
Question
Write the correct statements :
The ratio between input energy and output energy is called efficiency of machine.
✓

Answer

The ratio between output energy and input energy is called efficiency of machine.

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