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प्रश्न
The ______ in the centre, the ______ on one side and the ______ on the other side make a lever of the second order.
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उत्तर
The load in the centre, the fulcrum on one side and the effort on the other side make a lever of the second order.
संबंधित प्रश्न
Select the correct alternative:
For an ideal machine, the efficiency is
A machine is 75% efficient’. What do you understand by this statement?
Why is a machine not 100% efficient?
Derive the relationship between mechanical advantage, velocity ratio and efficiency of a machine.
Write an expression for the mechanical advantage of an inclined plane in terms of its length I and vertical height h.
Give scientific reason for the following:
Passengers in a bus are pushed backward when it starts suddenly.
What is the efficiency of an ideal machine?
How does a machine work?
Classify the following as a lever, a pulley and an inclined plane:
A knife
Which machine will you use to do the following work? Write their type.
To draw water from a well.
