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Specific Heat Capacity

Which of the ...

Question

Which of the following are the correct precautions while cutting a glass tube?

A

Make a single deep scratch at the desired length with one stroke of file.

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B

To avoid injury, hold the glass tube with the help of a thick piece of cloth

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C

Do not heat the end for long time. It may seal the end or make it narrow.

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D

All of these

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Solution

The correct option is D All of these
We have to take following precautions while cutting a glass tube:
Make a single deep scratch at the desired length with one stroke of file.
To avoid injury, hold the glass tube with the help of a thick piece of cloth or wear protective gloves.
Heat the end using a Bunsen Burner. Do not heat the end for long time. It may seal the end or make it narrow.

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