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प्रश्न
Select the correct alternative:
For an ideal machine, the efficiency is
पर्याय
greater than unity
less than unity
equal to unity
depends on the value of load
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उत्तर
equal to unity
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संबंधित प्रश्न
What is an ideal machine?
State the kind of lever which always has mechanical advantage less than 1. Draw a labelled diagram of such a lever.
The correct relationship between the mechanical advantage (M.A.), the velocity ratio (V.R.) and the efficiency (n) is ______.
What is an inclined plane?
What is an ideal machine?
Define mechanical advantage (M.A.) of the machine.
Give an example of the following use of a machine to obtain gain in force.
Classify the following as a lever, a pulley and an inclined plane:
Nutcrackers
Which machine will you use to do the following work? Write their type.
To lift bricks to the top of a tall building.
Simple machines usually exchange a larger force to move a heavy object.
