Question

Which among the following is not a device to measure mass?
a. Spring balance
b. Beam balance
c. Physical balance
d. Digital balance

Answer 1

Ans- a. spring balance Mass and weight is different concept so spring balance used to measure the weight not mass

-Spring balance -a balance that measures weight by the tension of a spring

-Beam balance-Mass of the body under the gravitation is determined by the device is known as the Beam Balance.

An agate knife edge on which a beam supported is resting on a support which is moving inside a vertical pillar.

A light pointer moves over a scale is carried by the beam.

Physical Balance-The mass or the gravitational mass of the substance which is measured with the help of weighing instrument is known as physical balance.

 Digital Balance- Foe weighing substances to the milligram (0.001g) level, the sensitive instruments from general chemistry labs are used that is known as digital balance.

Answer 2

spring balance is the right answer