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Which of the following statements is NOT correct?

A statement is a sentence that expresses a fact, idea, opinion, or belief. It is a declarative sentence that conveys some information or makes a claim about something.

Statements can be true or false, and they can be simple or complex. Simple statements are those that express a single idea or fact, while complex statements are made up of multiple clauses or phrases that convey more than one idea.

Statements are a fundamental component of language and are used in various contexts, including academic writing, journalism, and everyday conversation.

Question

Which of the following statements is NOT correct?

A. Loudness of sound is determined by the amount of energy received by the ear per unit time.

B. Pitch doesn't depend upon the amount of energy.

C. Loudness changes with change of frequency.

D. Pitch changes with change in frequency.

Answer

The statement that is not correct is C. Loudness changes with change of frequency.

Explanation

The correct statement is that "Pitch doesn't depend upon the amount of energy," which is option B. Pitch is determined by the frequency of the sound wave, which is the number of vibrations per second.

As the frequency of a sound wave increases, the pitch of the sound also increases. Therefore, option D is correct. 

However, the loudness of a sound does not change with changes in frequency, but rather with changes in intensity or amplitude of the sound wave. So, option C is incorrect.

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