JEE Main 2021 Physics question
The value of tension in a long thin metal wire has been changed from to . The lengths of the metal wire at two different values of tension and are and respectively. The actual length of the metal wire is :
Answer: (A)
The value of tension in a long thin metal wire has been changed from to . The lengths of the metal wire at two different values of tension and are and respectively. The actual length of the metal wire is :