Rewrite the following statement in the form `p` if only if`q :` If a tumbler is half empty, then it is half full and if a tumbler is half full, then it is half empty.

Rewrite each of the following statements in the form p if only if iq:s: If a tumber is half empty,then it is half full and if a tumber is half full,the it is half empty.

Two pairs of statements p and q are given below . Combine theses two statements using the biconditional phrase "if and only if " . p : If a tumbler is half empty , then it is half full . q : If a tumbler is half full , then it is half empty.

What is half wave and full wave rectifier.

(a)Check the validity of the biconditional statement:"a glass of water is half empty if and only if it is half full".

Which pair of substances among the following would float in a tumbler half filled with water?

The mean value of AC current in half cycle and in full cycle is