Multiple choice

Directions: Choose one word from the alternatives to replace the phrase given below.

An instrument for increasing the volume of the voice

  1. Microphone

  2. Telephone

  3. Periscope

  4. Gramophone
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A microphone converts sound waves into electrical signals that can be amplified, effectively increasing voice volume. The 'micro-' prefix indicates it works with small sound waves. Telephones transmit sound over distance, periscopes are optical viewing devices, and gramophones reproduce recorded audio.

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