Optics and Spectroscopy - 7BPH3C1
II Internal Test
Time : 2.5 Hrs Marks: 40
PART - A 5 x 2 = 10
1. List the uses of air wedge.
2. State Rayleigh Criterion for resolution.
3. Define resolving power of a prism.
4. State any two differences between Fresnel and Fraunhofer diffraction.
5. Define specific rotatory power.
PART - B 2 x 5 = 10
2. Explain Fresnel diffraction at a circular aperture.
PART - C 2 x 10 = 20
2. Give the theory of plane transmission grating. Describe an experiment to determine the wavelength of sodium lines.