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Phonometer is used to measure which one of the following?

A. The power of brightness of light

B. Extremely high temperature

C. Frequency of electromagnetic wave

D. Testing the force of the human voice in speaking

Answer: Option D


This Question Belongs to Physics GK Chapter Wise >> Unit And Measurement

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Related Questions on Unit and Measurement

physical quantities

A. cannot be measured

B. can be expressed in the form of law

C. can be represented completely by its magnitude and unit

D. Both B and C