OPTICS AND SPECTROSCOPY - 4BPH4C1
III INTERNAL TEST
PART –A 5 x 2 =10 MARKS
1.GIVE THREE METHODS OF MINIMIZING SPEHERICAL ABERRATION.2. STATE STOKES LAW
3. STATE RAYLEIGH CRITERION FOR RESOLUTION.
4. DEFINE SPECIFIC ROTATORY POWER.
5. WHAT ARE STOKES AND ANTI STOKES LINES?
PART – B 4 x 5 = 20 MARKS
6. EXPLAIN THE CONSTRUCTION AND WORKING OF A DIRECT VISION SPECTROSCOPE.7. EXPLAIN HOW THE JAMIN INTERFEROMETER IS USED TO STUDY THE REFRACTIVE INDICES OF GASES AT VARIOUS PRESSURES.
8. GIVE THE THEORY OF HALF WAVE PLATE.
9. DISCUSS THE QUANTUM THEORY OF RAMAN EFFECT.
PART – C 2 x 10 = 20 MARKS
10. DERIVE THE CONDITIONS TO PRODUCE (I) DISPERSION WITHOUT DEVIATION AND (II) DEVIATION WITHOUT DISPERSION IN COMBINATIONS OF PRISMS.11. EXPLAIN FRESNEL DIFFRACTION AT A CIRCULAR APERTURE.