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Question

Choose the correct statement when we measure the temperature of a water kept in a beaker: 

A

Thermometer should be kept vertical so that the bulb does not touch sides or bottom of the beaker

B

Thermometer should be kept vertical so that the bulb touches the bottom of the beaker

C

Thermometer should not be kept tilted so that the bulb touches sides or bottom of the beaker

D

Thermometer should be kept tilted without touching bottom or sides of the beaker

Medium

Solution

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Correct option is
A

Thermometer should be kept vertical so that the bulb does not touch sides or bottom of the beaker

While measuring temperature, the laboratory thermometer should be held vertically. It should be surrounded from all sides by the substance(water in this case) whose temperature is to be measured and hence, it should not touch the sides or the bottom of the beaker.

Hence, option A is correct.

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