What is the frequency formula...? Mcqs

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What is the frequency formula...?

(A) check in details
(B) empty

(C) empty
(D) empty

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Source: This question is taken from the Everyday Science

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The sounds of which frequency are human beings most sensitive...?

(A) 400 hertz
(B) 20 hertz

(C) 20000 hertz
(D) 5000 hertz

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Source: This question is taken from the Everyday Science

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The frequency of a turning fork determined by a:...?

(A) Magnetic tape
(B) Modulator

(C) Sonometer
(D) Reed instrument

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Source: This question is taken from the Everyday Science

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The frequency of ultrasound wave is typically...?

(A) Above 20 kHz
(B) Above 20,000 kHz

(C) Below 20 kHz
(D) Below 02 kHz

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Source: This question is taken from the Everyday Science

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