We can achieve efficiency greater than 100% by using simple machines.

True

No worries! We‘ve got your back. Try BYJU‘S free classes today!

False

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is B False
Efficiency is the ratio of output energy to input energy. Work done by a machine is always less than work done on the machine. This is because when you do some work on the machine, some work is lost to overcomes friction existing between different parts of the machine.

Suggest Corrections

Similar questions

Can we achieve 100% efficiency from an engine by making the processes reversible?

Select the incorrect statement :

(a) A machine always has the efficiency less than $100 %$ .

(b) The mechanical advantage of a machine can be less than 1.

(d) A machine can have the mechanical advantage greater than the velocity ratio.

For simplicity and spend of work, we use instruments in which two or more than two simple machines are used.

Join BYJU'S Learning Program