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XII BOARDS PREVIOUS YEAR-XII BOARDS-SET-I
- What is the ratio of radii of orbits corresponding to first excited st...
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- A wire of resistance 8R is bent in the form of a circle. What is the e...
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- Conditions Of Total Internal Reflection
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- What is the function of repeater in a communication system?
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- (i) Write two characteristics of a material used for making permanaent...
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- Draw magnetic field lines when (a) (i) diamagnetic ,(ii) paramagnetic ...
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- Draw the circuit diagram of an illuminated photodiode in reverse bias?...
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- An electric lamp having coil of negligible inductance connected in ser...
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- Arrange the following electro-magnetic radiations in ascending order o...
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- The radius of curvature of the faces of a double convex lens are 10 cm...
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- An electron is accelerated through a potential difference of 100 volts...
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- A heavy nucleus X of mass number 240 and binding energy per nucleon 7....
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- (a) The blusih colour predominates in clear sky . (b) Voilet colour ...
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- Plot a graph showing the variation of stopping potential with the freq...
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- Write the principle of working of a potentiometer. Describe briefly, w...
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- (i) Write the expression for the magnetic moment (vecm) due to a plana...
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- (a) Depict the equipotential surfaces for a system of two identical po...
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- Define toatal internal reflection.State its essential conditions.
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- Define 'activity' of a radioactive material and write its S.I.unit. ...
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- A long straight wire of a curcular cross-section of radius 'a' carries...
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