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ASSERTION &REASONING STATEMENT 1: A +ve charged sphere & a -ve charged sphere r kept at finite distance. The total electrostatic P.E. of system must b -ve. STATEMENT 2: P.E. btwn 2 like charge particles is +ve & -ve for 2 unl ...
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*Image* 12 identical rods made of same material are arranged in form of a cube. The temp. of P & Qare maintained at 90 C & 30 C resp. The temp. of V , in steady state is? ...
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*Image* What is the time period of small horizontal oscillation of the given block? ...
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A small block of mass m is kept on a rough inclined surface of inclination "theta" fixed in an elevator.the elevator slide on the wedge. The work done by friction on the block in time t is: Ans: mgvtsin^2[ theta] reply soon!! ...
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Does Gauss law for electric flux hold, in case of induced electric field due to time dependent magnetic field in a cylindrical region? Is it the case that Gauss law for flux holds in conservative electric fields only??? a bit ...
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*Image* A conducting ring of radius L=2m is placed on x-y plane, having its centre at the origin. A uniform magnetic field 5T(-k) exists in the space. A conducting rod PQ of mass M & length 2L is placed along the diameter of ...
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A spectroscopic instrument can resolve 2 nearly wavelengths λ & λ+δλ if λ/δλ < 8000. how many lines will be resolved by the instrument? ...
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integrate dx/((x^2) (1+(x^4))^3). ...
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*Image* The track is frictionless. The block B of 4kg is lying at rest & block A of 2kg is pushed along the track with some speed. The collision between A & B is perfectly elastic. With what velocity should A start such that ...
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what is the concept of instanteneous axis of rotation? how to use this concept in problems? ...
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one end of a light spring of natural length d & spring constant k(=mg/d) is fixed on a rigid support& the other end is fixed to a smooth ring of mass m which can slide without friction on a vertical rod fixed at a distance d ...
