A generator manufacturing company was contracted to produce an a.c dynamo but inadvertently produced a d.c dynamo. To correct this error, the

A radioisotope has a decay constant of 10\(^{-7}\)s\(^{-1}\). The average life of the radioisotope is

For semi conductor to have negative temperature coefficient of resistance implies that

X rays can be used in the study of crystal structure because they