InterviewSolution
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(1) write the formula to find out the least count measurement of vernier callipers?(2) write two names of derived physical quantities and write it's SI Unit?(3) what is impluse of force? |
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Answer» Theleast counterror is the error associated with the resolution of the instrument. If we use a metrescaleformeasurementof length, it may have graduations at 1 mm divisionscalespacing or interval. AVernier scaleoncalipermay have aleast countof 0.02 mm while amicrometermay have aleast countof 0.01 mm. Acceleration metre per second squaredm s-2Area square metre m2Density kilogram per cubic metre kg m-3Heatcapacity joule per kelvin J K-1 Impulseis the change of momentum of an object when the object is acted upon by aforcefor an interval of time. So, withimpulse, you can calculate the change in momentum, or you can useimpulseto calculate the average impactforceof a collision. |
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