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Grade: 11

                        

1.A body subjected to strain several times will not obey Hookeslaw due to A)yield point B) elastic fatigue C)Permanent state d)Breaking stress 2.According to Hookes law force is propotional to a) r b)r^2 c)1/r d)1/r^2

4 years ago

Answers : (2)

Umakant biswal
5359 Points
							
@ shalan 
in the frst ques option no b turns out to be the correct option . beacuse hookes law works in the limit of elastic limit , so, if elastic fatigue will be their , it will not obey the hookes law . 
in the 2nd ques option no a probably turns out to be the correct option 
acc to hookes law 
F= -kx 
so, kindly mention what is r ?? 
here x is the displacement produced . 
HOPE IT CLEARS 
4 years ago
anmol
26 Points
							Acc. To me in ques.1 option b is correct answer because by applying strain no of times its elastic limit will decrease
						
4 years ago
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