Physics hons.Core-02 paper, Exams of Mechanics

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SH PHY 02 1st Semester Examination, 2020 Time : 3 hours Full Marks : 60 Answer any one Group as per your Syllabus. Answer from all the sections as per direction. the figures in the right-hand margin indicate marks. Candidates are required to give their answers in their own words as far as practicable. GROUP_A (MODEL SYLLABUS) (MECHANICS ) SECTION A 1. Answer a// questions : 1x8 (a) Position vector of C.M in Laboratory frame of a two particle system of mass 1 kg and 2 kg having position vector 1 m and 2 m respectively is ? (6) Moment of inertia of flywheel can be measured using the principle (c) For an incompressible substance the value of poissons ratio is (d) Gravitational field at an internal point of a solid sphere with distance. (e) Bar pendulum is pendulum. (f) Fora stream line flow Reynold number is (g) Orbital velocity of a sattelite moving very close to earth is (A) Lorentz transformation equations reduces to Galilean transformation equa- tion for SECTION-B 2. Answer any eight of the following : 158 (a) Define radius of gyration. SH PHY 02 am (lurn Over)