Gujarati
3-2.Motion in Plane
easy

टेकोमीटर (Techometer) वह युक्ति है, जिससे मापा जाता है

Aगुरुत्वीय खिंचाव
Bघूर्णन की चाल 
Cपृष्ठ तनाव
Dडोरी में तनाव

Solution

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.
Standard 11
Physics

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