In a pair of scissors, the blade is longer than the blades of a shear which is used for cutting the metal sheet. Explain the reason.

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Solution

Explanation:
A pair of scissors used to cut a piece of cloth has blades longer than the handles so that the blades move longer on the cloth than the movement at the handles.
While shears used for cutting metals have short blades and long handles because it enables us to overcome large resistive force with a small effort.

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