BSc Sem II 2012 2014 2014 Phy I Question Paper - Mumbai University | munotes

Questions asked in this paper

• ii) Figures to the right indicate full marks

1. Q1 Answer the following: Three) 15 marks
   • a) A particle is subjected to two perpendicular SHM’s x= Acoswt and y= Acos(wt — Find trajectory of the particle, \ Explain the concept of centre of mass of a System of particles,
   • c) Define Simple Harmonic Motion. Show that a Particle whose potential energy is % kx? where k is a constant executes SHM
   • d)Four masses lkg, 2kg, 3kg and 4kg are located at (-1, (1, -2, 4) and (3, 1, 2) respectively. Find the centre of mass of this system,
2. Q2 Answer the following: -(Any Three)
   • a)If the two lenses Li & Ly of focal length f; and are placed coaxially parallel to each other along the optic axis than derive an expression for equivalent focal length of a combination,
   • b) Explain the term “deviation in case of lens”. Hence Prove that the deviation does not depend on the position of object With a suitable ray diagram, explain spherical Abberation of lens. State the method of
   • d) Describe how will you determine Refractive Index of Prism using spectrometer
3. Q3 Answer the following: -(Any Three)
   • a) Draw labelled-diagram of the following:
   • i) Laser cutter and ii) A typical communication system Explain the following terms: i) Monochromaticity

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