Not yet checked 1 of 7 questions have not yet been compared with the official paper.
Part II
Q. 2
(a)State and prove Stoke’s theorem. [8]
(b)Prove that if the vector is the gradient of a scalar function then its line integral around a closed curve is zero. [4]
(c)A particle moves along the curve x = x=2t2 , y = y=t2−4t , z = 3 t − 5 z = 3t-5 z = 3 t − 5 where t is the time. Find the components of its velocity and acceleration at time t=1 in the direction 2i−3j+2k . [8]
Not yet checked
(20)
Q. 3
(a)What is moment of inertia? State and prove parallel axis theorem. [12]
(b)Calculate rotational inertia of a hollow cylinder about cylindrical axis. [8]
(20)
Q. 4
(a)State and prove the Kepler’s law of areas and Kepler’s law of periods of planetary motion. [8]
(b)A satellite orbits at a height of 230km above the Earth surface. What is the period of satellite? [6]
(c)At what altitude above the earth surface the value of ‘g’ is three quarters of its value at the surface of the earth. [6]
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Q. 5
(a)What is diffraction grating? Explain how grating diffracts light. Derive relation for resolving power of grating. [12]
(b)What is meant by polarization of light? How can we get a plane polarized light by a polarizing sheet? [8]
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Q. 6
(a)Derive equation of Lorentz velocity transformations and show that speed of light is independent of the relative motion between the frames of reference. [12]
(b)The siren of a police car emits a source tone at a frequency of 1125 Hz. Find the frequency that would you receive in your car under the following circumstances: Your car at rest, police car moving towards you at 29 m/s. Police car at rest, your car moving towards it at 29 m/s. Your and police car are moving towards one another at 14.5 m/s. Your car moving at 9 m/s, police car chasing behind you at 38 m/s. [8]
(20)
Q. 7
(a)Define Entropy. State Second law of thermodynamics in terms of Entropy. [8]
(b)Discuss applications of First Law of thermodynamics. [6]
The 2016 CSS Physics paper set by the FPSC. Question wording only; questions marked “Not yet checked” have not been compared with the official paper yet.
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