THUNDER

Answer the following question giving explanations wherever necessary. Lightning 'and thunder take place in sky and at tlie same distance from us. Explain why-lightning is seen earlier and thunder is heard later.

As a P: maestro appeared to be anjoying every bit of it Q: and followed every composition the R: thunderous applause from S: an appreciative audience preceded Which one of the following is the correct sequence?

A man seeinga lightningstarts countingseconds, until he hears thunder. He then claims to have found an approximate but simple rule that if the count of second is divided by an integer, the result directly gives, in km, the distance of the lightning sotirce. Whatis theinteger ? (Velocityofsound inair = 330 m/s)