Q.

Which among the following is used to measure weight of an object?


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a

Spring balance

b

Beam balance

c

All of the above

d

None of these 

answer is C.

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Detailed Solution

A beam balance and spring balance are used to measure the weight of an object.
The weight of an object is the force with which the gravitational force pulls it. A Newton, which is equal to kg m/s2, is the SI unit of weight (N). Therefore, the formula W=mg, which denotes weight as the gravitational force exerted on a mass, can be written as kg m/s2, which is equivalent to N. One kilogram weight is the force that the earth applies to a mass of one kilogram. The weight of an object is measured using a beam balance or a beam scale.
 
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