Sushweta was trying to measure the temperature of boiling water- She found the reading on the thermometer to be 80- C- Which of the followings can be the reasons for this-A- The mercury bulb was touching the surface of the containerB- She took the reading while the thermometer was inside boiling waterC- The thermometer was tiltedD- None of the above

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Byju's Answer

Standard VII

Physics

Lab Thermometer

Sushweta was ...

Question

Sushweta was trying to measure the temperature of boiling water. She found the reading on the thermometer to be $80^{\circ} C$ . Which of the following(s) can be the reason(s) for this?

The mercury bulb was touching the surface of the container

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She took the reading while the thermometer was inside boiling water

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The thermometer was tilted

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None of the above

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Solution

The correct options are
A
The mercury bulb was touching the surface of the container

C
The thermometer was tilted

As we know that kink is not present in laboratory thermometer so the reading should be taken when the mercury bulb is surrounded by boiling water on all sides. Also while taking the reading the thermometer should be kept straight.

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Sushweta was trying to measure the temperature of boiling water. She found the reading on the thermometer to be 80∘ C. Which of the following(s) can be the reason(s) for this?

Sushweta was trying to measure the temperature of boiling water. She found the reading on the thermometer to be $80^{\circ} C$ . Which of the following(s) can be the reason(s) for this?