BSc Sem I 2015 2016 2016 Physics L Question Paper - Mumbai University | munotes

Questions asked in this paper

• ii) Figures to the right indicate full m:

1. Q1 A) Attempt any one
   • a) If A &
2. Q1 B) Attempt any one. [7M]
   • a) Find at
   • b) Show that the addition of vectors is associative. i.e. A+
   • a) If A= and B= 3i-j+-2k, find (i) A.B (ii) (iii) (2A+3B)
3. Q2 A) Attempt any one. [7M]
   • a) Solve the equation is exact and hence find its solution
   • b) Solve the equation —+ == capacitor. The initial charge on Capacitor j 4 ity in a resistive medium. If we assume tha F ocity its equation of motion is = Iny=-x (Inx - 1) is solution of = B equation, What principle is it based? Is it equation applicable for a weight of 100N hangs from a string tied to the two other strings attached to a fixed support as shown in figure below . The two strings make angles of and with the
   • a) For a homogeneous isotopic material show = 2 is the area of the wings show that the upward A here p is t density of air, 4
4. Q3 C) Attempt any one [5M]
   • a) A thin metal plate of 10 cm? in area rests ona layer of oil 2mm thick A force of applied to the plate horizontally keep it moving with a uniform speed of viscosity of the oil >) Fora steel material, N/m? and Bulk modulus is 13 N/m?, Poisson’s ratio and modulus of rigidity of steel
5. Q4 Attempt any three. [15M] :
   • a) (i) define scalar & vector the following in scalar & vectors
   • b) Prove that i j + (3xz +2xz+2z) k is solenoid Show that the function F(x,y) , F(x, dF is a perfect differential’?
   • d) Solve the equation Determine the force per unit area required to compress a volume of water by one percent (Bulk modulus of water is dynes/cm?)
   • f) A thin metal plate of 20 in area rests on a layer of oil 3mm thick A force of applied to the plate horizontally keep it moving with a uniform speed of viscosity of the oil

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