FIFTH SEMESTER B.Sc. DEGREE EXAMINATION, NOVEMBER 2018
(CUCBCSS—UQ)
Physics/Applied Physics

8
PHY 5B 08/APY 5B 09—PHYSICAL OPTICS AND MODERN OPTICS
Time : Three Hours Maximum : 80 Marks
١ Section A

Answer in a word or phrase.
Answer all questions. Each question carries 1 mark.

To determine optical rotation of solutions

is used.

(a) Interferometer. (b) Spectrometer.

(c) Magnetometer. (൪) Polarimeter.

2. Wide separation of spectral lines indicates :

(a) High resolving power. (b) High magnifying power.

(c) High dispersive power. (d) None of these
3. Abiprism produce N1 fringes with light of wavelength 41,The number of fringes with wavelength
22 15 है
(೩) 0൮02. ൯) ۸91/۸1۰.
(2) 2,72൩. (१) [02].

4. To invert a circularly polarized light, we use:

(a) Quarter wave plate. (b) Halfwave plate.

(८) Half shade device . (6) Biquartz device.
5. When focal length of a lens decreases, the field of view of the 1618 ‏لل‎
‎6. Colours of thin films are explained using the phenomenon called ‏للد‎ ١
7. Which one is not used to produce interference pattern

(a) Biprism. (b) Two mirror.

(€) Newton’s rings. ٠ (8). Nicol nviem