1.

A pendulum clock gives correct time at 20^(@)C at a place where g=10m//s^(2). The pendulum consists ball. If it is taken to a different place where g = 10.01m//s^(2) at what temperature the pendulum gives correct time (alpha of steel is 10^(-5)//""^(@)C)

Answer»

`30^(@) C`
`60^(@) C`
`100^(@) C`
`120^(@) C`

Answer :D


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