Subject :NSO Class : Class 4
Which of the following statements is incorrect?
AA wedge is made up of two inclined planes.
BA fork is considered a screw.
CDoor knob is an example of wheel and axle.
DScrews are used to lower and raise things.
d is the correct answer please check if the answer is wrong
Ans 1:
Class : Class 2
Seems like b but giving c how?