ICSE Class 8 Answered
why is the pendulum of aclock made of invar?
Asked by nathsantanukumar | 17 Apr, 2018, 07:46: PM
Expert Answer
Invar is derived from word invariable. It is an alloy which is made from nickel and iron. It has low coefficient of thermal expansion. So there will not be linear expansion of pendulum due to the rise in temperature. And the time shown in the clock will be accurate. Thus, invar is used in the pendulum of clock.
Answered by Shiwani Sawant | 18 Apr, 2018, 09:31: AM
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