problem 1) prepare a short note on colours of thin films.

problem 2)(a) Establish the rectilinear propagation of light from Fresnel’s assumptions.

(b) Obtain the expression for the resolving power of a telescope.

problem 3)(a) prepare a detailed note on the significance of a quarter wave plate.

(b) describe how circularly polarised light is produced and detected.

problem 4)(a) Group the application of ultrasonics in the field of NDT.

(b) prepare a note on architectural acoustics.

problem 5) describe Kundt’s tube method of the determination of velocity of sound in air.

problem 6) describe Fresnel’s biprism method and describe how it is used for the determination of wavelength of light.

problem 7) With the mathematical treatment, analyse the Fresnel diffraction at a circular aperture.

problem 8) Describe in detail Laurent’s half shade polarimeter’s construction and working.

problem 9) Describe the production of Ultrasonic waves by the method of Magnetostriction.

problem 10) Obtain the expression for the change in frequency of a sound note when the source and the observer are in motion. Also, describe the result for different cases.