PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free Demo1. How does the friction arise between the surfaces of two bodies in relative motion?
a. The friction arises due to the presence of between the surfaces
b. The interlocking of the of the two surfaces produces frictional force.
2. Name two instruments which help to measure the pressure of a fluid.
a. Instrument 1 -
b. Instrument 2 -
3. Define one atmosphere.
a. The exerted by the mercury column is referred to as 'one atmosphere' pressure.
b. The unit of pressure is .
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