A group of students are given a project for construct ing a telescope and they were supplied with two biconvex lens of power 1 diopter and 0.1 dioptre. Of the two lenses, which can be used as objective?

A group of students are given a project for construct ing a telescope and they were supplied with two biconvex lens of power 1 diopter and 0.1 dioptre.Draw the ray diagram for the formation of the image by a telescope.

A group of students are given a project for construct ing a telescope and they were supplied with two biconvex lens of power 1 diopter and 0.1 dioptre.Arrive at an expression for magnification of a telescope

A group of students are given a project for constructing a telescope and they were supplied with two biconvex lens of power 1 dioptre and 0.1 dioptre. Prepare a notice label about the precaution to be taken while using the telescope and limitations of the telescope constructed.

The magnifying power of a telescope depends on the focal length of the objective and that of the eye- piece. Data of some lenses are given in the table. Choose any two lenses which are to be preferred as objective and eye-piece to construct a telescope. Give reason for your selection.

Two groups of students were studying the reaction of HBr on alkenes. The first group treated but-1-ene with HBr and the other treated but-1-ene with HBr in presence of benzoyl peroxide:What would have been the product obtained if they had used HCl instead of HBr. Explain.

Two groups of students were studying the reaction of HBr on alkenes. The first group treated but-1-ene with HBr and the other treated but-1-ene with HBr in presence of benzoyl peroxide: What would be the main products obtined by each group. Write equations for the reactions.