| (i) In beam balance, fulcrum is in the middle, |
| (ii) A nutcracker is an example of third-class lever. |
| (iii) In tongs, the fulcrum and the load are at the two ends. |
| (iv) See-saw is an example of first class lever. |
A) (i), (iii) and (iv)
B) (ii) only
C) (iii) and (iv)
D) (i) and (ii)
Correct Answer: A
Solution :
A nut cracker is an example of second- class lever. In second-class levers, load lies between the fulcrum and the effort.
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