Find the odd one out based on the primary form of energy produced or involved:

Find the odd one out based on the primary form of energy produced or involved:
  1. Strumming a tight guitar string
  2. Ringing an electric brass bell
  3. Burning a piece of charcoal in a stove
  4. Blowing air through a referee whistle

Solution

Strumming a guitar, ringing a bell, and blowing a whistle primarily produce sound energy through vibrations, whereas burning charcoal primarily releases chemical energy as heat and light energy.

Asked in: Homi Bhabha Practice

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