Mention against each of the following wheather regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case. (f) Piece of paper .

Mention against each of the following wheather regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case. (e) Mirror .

Mention against each of the following wheather regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case. Chalk powder .

Mention against each of the following wheather regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case. Cardboard surface .

Mention against each of the following wheather regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case. Marble floor with water spread over it .

Mention against each of the following wheather regular or diffused reflection will take place when a beam of light strikes. Justify your answer in each case. Polished wooden table .

Does the chemical reaction take place when zinc is added to ferrous sulphate solution? Justify your answer.

In each of the following cases, state whether the function is one-one, onto or bijective. Justify your answer. (i) f : R to R defined by f (x) =3-4x (ii) f : R to R defined by f (x) =1 + x ^(2)