BSc Physics SEM II 2015 16 2015-16 ATKT PHYSICS 1 Question Paper - Mumbai University | munotes

Questions asked in this paper

• NOTE: Figures to the right indicate f —

1. Q1 Discuss the coniposition of per the the res 0 sane tant in general, is an inclined (7M) ‘Show that a particle whos ose potential energy Where is simple harmonic Explain the centre of mass of of particle Write cardinal points ofa system of lenses. Show that the nodal points coincide with the principal points for the system of lenses placed in the medium on the either side. (8M) Give the.theory. of interference in thin film. expression for the optical path difference: hence colours of thin film. (SM)
   • B) .Explain the phenomenon of refraction through a thin lens. Derive an expression for the focal of
   • B) Explain the formation of-colours film and show that when the film is by a of light, interference and
   • C) Explain how. use a spectrometer to find the angle of minimum (SM)
   • C), Explain spherical aberration with the help of neat ray diagram. (3M)
2. Q2 Answer the (20M)
   • A) Describe the construction and working of He-Ne laser with the help of encrgy level diagram (8M)
   • A) What aperture (NA) ofan optical fibre? expression

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