If we put boiled water in one gl beaker and heat water in another beaker, which beaker breaks first? Why?

the 1st beaker breaks first bcoz when water is poured due to heat thermal expansion takes place due to which inner part of gl expands but as gl is poor conductor of heat , heat is not able to be transferred to outer part of gl due to which large pressure is created on the outer side by the inner one and th gl breaks.