Eamcet Physics - 1 st Year : Unit 7.7 ( Properties of Bulk Matter ) - Expansion of Solids Free Online Tests | Mock Tests | Preparation | Practice Tests

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A): Invar is used in metal tapes, balance wheels and pendulum clocks.
R): The coefficient of linear expansion of invar is very low.

A. Both ‘A’ and ‘R’ are true and ‘R’ is the correct explanation of ‘A’

B. Both ‘A’ and ‘R’ are true and ‘R’ is not the correct explanation of ‘A’

C. ‘A’ is true and ‘R’ is false

D. ‘A’ is false and ‘R’ is true

E. None of the above

View Answer

Correct choice: A

Explanation:

None

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