Different Ways to say I'm Tired

What are the different ways of heat transfer ?

Two different blocks of equal mass m are released from two positions as shown in figure Net force on the block at bottommost point in case (i) is say F_(1) and in case (ii) is say F_(2) . Then

A body moves through a distance of 3 m in the following different ways. In which case is the maximum work done?

A body is moved through a distance of 5 m in the following different ways. Maximum work is done when the body is

“On the whole, the small society of Rameswaram was very rigid in terms of the segregation of different social groups,” says the author. Which social groups does he mention? Were these groups easily identifiable (for example, by the way they dressed)?