" Key is : "

Key Points

Assertion : Keys are analytical in nature. Reason : Keys are based on couplet.

Assertion : Keys are analytical in nature. Reason : Keys are based on couplet.

Assertion : Keys are analytical in nature. Reason : Keys are based on couplet.

Assertion : Keys are analytical in nature. Reason : Keys are based on couplet.

In the arrangement shown in figure,there are two coils wound on a non-conducting cylinderical rod.Initially the key is not inserted.Then the key in inserted and later removes.Then, A. The galvanometer will not deflect B. The galvanometer will deflect in one direction when the key is inserted and in the opposite direction when the keys removed C. The galvanometer will deflect in one direction when the key is inserted and remain still when the key is removed . D. The galvanometer will deflect in one direction when the key is inserted and in the same direction when the key is removed .

To open a lock, a key is taken out from a collection of n keys at random. If the lock is not opend with this key, it is put back into the collection and another key is tried. The process is repeated again and again. If it is given that with only one key in the collection, the lock can be opend, then the probability that the lock will open in n trials, is

Describe Key as taxonomical aid.