Question

Please Answer My Question.​

Answer 1

Explanation:

(a)Pyrex glass in commonly used in kitchenware because pyrex glass has a very low coefficient of expansion. There it does not crack on heating.

(b)The pendulum clock is made up of invar because invar's coefficient of thermal expansion is small. So, the length of the pendulum remains unaffected during changes in temperature.

Answer 2

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Give Reason:

1. It is because Pyrex Glass has a low efficient of expansion, so when heated there must be no cracks.
2. It is because Invar's coefficient of thermal expansion is small. And also, Due to this the Time is so accurate than any material.

Explanation:

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