Question 1) Write a short note on colours of thin films.
Question 2)(a) Establish the rectilinear propagation of light from Fresnel’s assumptions.
(b) Obtain the expression for the resolving power of a telescope.
Question 3)(a) Write a detailed note on the significance of a quarter wave plate.
(b) Explain how circularly polarised light is produced and detected.
Question 4)(a) Group the application of ultrasonics in the field of NDT.
(b) Write a note on architectural acoustics.
Question 5) Explain Kundt’s tube method of the determination of velocity of sound in air.
Question 6) Explain Fresnel’s biprism method and explain how it is used for the determination of wavelength of light.
Question 7) With the mathematical treatment, analyse the Fresnel diffraction at a circular aperture.
Question 8) Describe in detail Laurent’s half shade polarimeter’s construction and working.
Question 9) Describe the production of Ultrasonic waves by the method of Magnetostriction.
Question 10) Obtain the expression for the change in frequency of a sound note when the source and the observer are in motion. Also, explain the result for different cases.