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Question

What material is tuning fork made of and why?


A

Steel, more tensile strength

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B

Elinvar, elasticity of elinvar does not change

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C

Iron, ductile

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D

Aluminium, less tensile strength

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Solution

The correct option is B

Elinvar, elasticity of elinvar does not change


Elinvar, elasticity of elinvar does not change


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