Which scientist established that the various form of energy mechanical, electrical and heat are basically the same and can be changed from one form into another...?
(A) John Dalton
(B) William Thomson
(C) Albert Einstein
(D) James Prescott Joule
✅ Correct Answer:James Prescott Joule
Comments
Which scientist established that the various form of energy mechanical, electrical and heat are basically the same and can be changed from one form into another...?
Water waves pass from deep into the shallow region and are then refracted. The characteristics of waves which will remain constant is _____...?
(A) Direction
(B) Frequency
(C) Speed
(D) Wavelength
✅ Correct Answer:Frequency
Comments
Water waves pass from deep into the shallow region and are then refracted. The characteristics of waves which will remain constant is _____...?