Question

E.match the statement

Column A
1. A machine whose parts are frictionless as well as weightless.
2. In an device, output energy is less than input energy.
3. The ratio between the output energy and the input energy.
4. The machine such as handle of water pump or a ramp.
5. A device which may speed up work or move heavy load or
change direction of effort.

Column B
(a) Simple machine
(b) Ideal machine
(c) Machine
(d) Principle of machine
(e) Efficiency of machine​

Answer 1

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