Describe an experiment which enables you to measure the displacement produced in a ray of light by a rectangular glass slab.

What is the difference between the displacement produced by a rectangular glass slab in a ray of light and the deviation produced by a glass prism?

Describe a method of producing plane polarised light.

STATE WHETHER THE FOLLOWING STATEMENTS ARE TRUE OR FALSE: A deviation in the path of a ray of light can be produced by a glass prism as well as a rectangular glass slab.

In a Young's double slit experiment, the slits are 0.03 cm apart and the screen is placed 1.5m away from the plane of the sources. The distance between the central bright fringe and the fourth bright fringe is measured to be 1 cm. Determine the wavelength of the light used.

The angle between an incident ray and the mirror is 40°. What is the total angle through which the ray of light turns?

Establish the following relation for total deviation delta of a ray light refracted through a traingular glass prism. delta = i+e-A Where I is the angle of incidence, e is the angle of emergence and A is the angle of the prism.

For an experiment in Botany, two different plants, plant A and plant B were grown under similar laboratory conditions. Their heigths were measured at the end of each week for 3 weeks. The results are shown by the following graph. During which week did Plant A grow most?