iit jee mock paper

You are provided with a printed piece of paper. Using this paper how will you differentiate between a convex lens and a concave lens ?

After a single sheet of paper is folded in half, there are two layers of paper. The same sheet of paper is repeatly folded in half. If function f represents the number of layers of paper that result when the original sheet of paper is folded a total of x times, then which equation could represents this function?

Explain the principle of paper chromatography.

Finger prints on a piece of paper may be detected by sprinkling fluorescent powder on the paper and then looking it into

Finger prints on a piece of paper may be detected by sprinkling flourescent powder on the paper and then looking it into

A bundle of 500 sheets of paper has a net weight of 2 3/10 kg. Find the weight of 1 sheet of paper.

The given figures show the unfolded sheet of paper after holes have been punched on the folded paper. Find the lines of symmetry.

The given figures show the unfolded sheet of paper after holes have been punched on the folded paper. Find the lines of symmetry. Equilateral triangle

If the weight of 12 sheets of thick paper is 40 grams, how many sheets of the same paper would weigh (2) 1/2 kilograms ?

The measures of a textbook are 22cm xx 11cm xx 3cm . It is to be covered with a brown paper. If each book requires 164 cm^2 of more paper for folding how much paper is required to wrap 85 such textbooks ?