Which of the following are correct examples of first, second and third class levers?

First class Lever Second class Lever Third class Lever
$I$ Scissors Wheel barrow Broom
$I I$ Ice Tongs Tweezer Paper cutter
$I I I$ Pliers Nut cracker Fishing rod

I

and

I I

only

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I I

and

I I I

only

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I I I

and

I

only

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I, I I

and

I I I

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Solution

The correct option is A $I I I$ and $I$ only
A class I lever has the fulcrum between effort and load. In an ice tong and tweezer, effort is between fulcrum and load. Hence, they are class III lever. In scissors and pliers, fulcrum is between effort and load. Therefore they are class I levers .
A class II lever has the load between effort and fulcrum. In wheel barrow, paper cutter and nut cracker, load is between effort and fulcrum. Therefore, they are class II levers .
A class III lever has the effort between fulcrum and load. A broom and fishing rod have the effort between fulcrum and load. Therefore, they are class III levers.
Hence, in the given table, I and III are the correct examples of I, II and III class levers .

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Similar questions

Classify the following into levers as class I, class II or Class III :

(a) a door (b) a catapult

Scissors and pliers belong to the same class of levers. Name the class of lever.

A paper cutter is an example of class II lever.

A fishing rod is an example of class III lever.

A man uses a crowbar of length 1.5 m to raise a load of 75 kgf by putting a sharp edge below the bar at a distance 1 m from his hand. State the kind of lever and calculate the effort needed.

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	First class Lever	Second class Lever	Third class Lever
$I$	Scissors	Wheel barrow	Broom
$I I$	Ice Tongs	Tweezer	Paper cutter
$I I I$	Pliers	Nut cracker	Fishing rod

Which of the following are correct examples of first, second and third class levers? First class Lever Second class LeverThird class Lever IScissors Wheel barrowBroom IIIce Tongs Tweezer Paper cutter IIIPliers Nut cracker Fishing rod

Which of the following are correct examples of first, second and third class levers?

First class Lever Second class Lever Third class Lever
$I$ Scissors Wheel barrow Broom
$I I$ Ice Tongs Tweezer Paper cutter
$I I I$ Pliers Nut cracker Fishing rod