Which of the following simple machines are combined to make scissors?
A
wedge and pulley
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B
lever and gear
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C
lever and wedge
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D
gear and pulley
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Solution
The correct option is B lever and wedge The blades of the scissors are a pair of wedges in a cross shape which pivot around a fulcrum. The attached handles are levers.
Hence a scissor is a combination of wedge and lever.