Why is there always a time gap between observing flash and hearing a thunder of clouds while both take place simultaneously?

each question constain STATEMENT-1(Assertion ) and STATEMENT - 2 (reason). examine the statement carefully and work the correct answer accoridng to the instructions given below : STATEMENT-1: In absorption, the molecules of a substance are uniformly distributed throughout the body of other substance. STATEMENT-2: In some cases, both absorption and adsorption takes place simultaneously.

In these question, a statement of assertion followed by a statement of reason is given .Choose the correct answer out of the following choices: Assertion and reason both are correct statements and reason is correct explanation for assertion. Assertion and reason both are correct statements but reason is not correct explanation for assertion. Assertion is correct statement but reason is wrong statement. Assertion is wrong statement but reason is correct statement. Assertion: The displacement current goes through the gap between the plates of the capacitor ,when the charge of the capacitor does not change. Reason: The displacement current arises in the region in which the electric field and hence the electric flux does not change with the time.

While pushing a heavy box from one place to another in his house, Naresh noticed that it was difficult to take a stationary box from its resting position to moving position but it was easy to move that box with that speed. Why was it so?

There is a circular path around a sports field. Sonia takes 18 minutes to drive one round of the field, while Ravi takes 12 minutes for the same. Suppose they both start at the same point and at the same time, and go in the same direction. After how many minutes will they meet again at the starting point ?