Gujarat BoardEnglish MediumSTD 11 SciencePhysics3.2 , motion in plane1 Mark
MCQ
A tachometer is a device to measure
A
Speed of rotation
✓
Gravitational pull
C
Surface tension
D
Tension in a spring
✓
Answer
Correct option: B.
Gravitational pull
b A tachometer is an instrument designed to measure the rotation speed of a shaft or disk. Tachometers generally measure rotations per minute $(RPM)$ though some models also serve as rate meters and/or totalizers.
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