Question

chemistry me aisa kyo hota h ki ek scientist ne kha ki aisa hota h but kuch time bad dusara khta ki ye galt h aur phir wo apna shi batata h aur usi ka mana jata h but hme galat wala bhi kyo yaad kraya jaata h

Answer 1

this happens because a lot of new theories Prove the older ones to be incorrect and there is always a scope of improvement in the field of science so basically every time there is a new theory it contradicts the previous one and hence your question gets the answer.