Pulley is an example of complex machine.

LEVER I

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LEVER II

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Solution

The correct option is B
LEVER II

Pulley is an example of simple machine. It is a device with a wheel which is grooved for a rope/thread on the circumference. The rope/thread is used to lift the weights which runs through the grooved wheel.

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Similar questions

Answer the following questions :

(a) What are simple machines? Give examples.

(b) What are the advantages of using a machine?

(d) What can you use as an inclined plane?

(e) What is meant by a lever?

(f) What is meant by a complex machine? Give an example.

(g) How many types of levers are there? On what basis are they classified?

(h) What should we do to take care of machines?

A paper cutter is an example of class II lever.

Draw a labelled diagram of a class II lever. Give one example of such a lever.

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