Find the odd one out based on the class of lever:

Find the odd one out based on the class of lever:
  1. Beam balance
  2. Pair of pliers
  3. Nail puller
  4. Human forearm holding a weight

Solution

Beam balance, pliers, and nail puller are Class I levers (fulcrum in the middle), whereas the human forearm holding a weight acts as a Class III lever (effort applied by biceps in the middle).

Asked in: Homi Bhabha Practice

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