Check the correctness of the equation using the dimensional formula
(i)E=mc2
(ii)1/2mv2 = mgh
Kindly refer to the links given below to get your answer :
https://www.meritnation.com/ask-answer/question/how-to-check-correctness-of-e-mc2/units-and-measurements/2266821
https://www.meritnation.com/ask-answer/question/hii-respected-experts-my-question-is-how-do-we-consider/physical-world/5263975
https://www.meritnation.com/ask-answer/question/how-to-check-correctness-of-e-mc2/units-and-measurements/2266821
https://www.meritnation.com/ask-answer/question/hii-respected-experts-my-question-is-how-do-we-consider/physical-world/5263975