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प्रश्न
Classify the following as a lever, a pulley and an inclined plane:
A knife
एका वाक्यात उत्तर
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उत्तर
A knife – An inclined plane
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या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
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?
The mechanical advantage of an inclined place is always:
(a) less than 1
(b) equal to 1
(c) greater than 1
(d) nothing can be said
Write the relation between mechanical advantage, velocity ratio and efficiency.
What is the efficiency of an ideal machine?
Classify the following as a lever, a pulley and an inclined plane:
A wedge
What is meant by simple machines?
______ help us to make work easier.
Name a machine for each of the following uses:
- to multiply the force,
- to change the point of application of force,
- to change the direction of force,
- to obtain the gain in speed.
