KVPY (Kishore Vaigyanik Protsahan Yojana) Stream SB-SX (Class 12 & 1st Year B.Sc.) Physics: Questions 76 - 79 of 268
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Question number: 76
» Kinematics » Motion in a Plane
Appeared in Year: 2011
Question
The surface of a planet is found to be uniformly charged. When a particle of mass m and no charge is thrown at an angle from the surface of the planet, it has a parabolic trajectory as in projectile motion with horizontal range L. A particle of mass m and charge q, with the same initial conditions has a range. The range of particle of mass m and charge 2q with the same initial conditions is –
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Question number: 77
» Physics and Measurement » Dimensional Analysis and Its Applications
Appeared in Year: 2012
Question
The potential energy of a point particle is given by the expression. A dimensionless combination of the constants α, β and γ is –
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Question number: 78
» Current Electricity » Temperature Dependence of Resistance
Appeared in Year: 2012
Question
A steady current Ι flows through a wire of radius r, length L and resistivity ρ. The current produces heat in the wire. The rate of heat loss in a wire is proportional its surface area. The steady temperature of the wire is independent of
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Question number: 79
Appeared in Year: 2012
Question
The capacitor of capacitance C in the circuit shown is fully charged initially, Resistance is R.
Circuit Diagram of Resistance and Capacitor
In figure RC circuit diagram is shown.
After the switch S is closed, the time taken to reduce the stored energy in the capacitor to half its initial value is:
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a. | Cln 2 |
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