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प्रश्न
Name the class to which the following lever belong:
a crowbar
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उत्तर
a crowbar: Class I lever.
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संबंधित प्रश्न
Describe three orders of levers giving an example of each. Draw neat diagrams showing the positions of fulcrum, load, and effort in each kind of lever.
What do you mean by the mechanical advantage of a lever?
Name the class to which the following lever belong:
a see-saw
Name the machine to which the following belong:
Beam balance
Name the machine to which the following belong:
Lemon crusher
Answer the following in a word or two or in a sentence.
Give one example of a machine used to multiply speed.
What is the use of the lever if its mechanical advantage is
- more than 1,
- equal to 1, and
- less than 1?
Explain why the mechanical advantage of the class III type of lever is always less than 1.
The diagram below shows a rod lifting a stone.
- Mark position of fulcrum F and draw arrows to show the directions of load L and effort E.
- What class of lever is the rod?
- Give one more example of the same class of lever stated in part (b).

Lemon juicer belongs to which type of lever? Why?
