Which of the following pairs of light rays show the widest separation in the spectrum…
Which of the following pairs of light rays show the widest separation in the spectrum of white light…
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An electron of charge 1.6 x 10-19C is accelerated between two metal plates. If the…
An electron of charge 1.6 x 10-19C is accelerated between two metal plates. If the kinetics energy of…
A magnetic field is said to exist at a point if a force is
A magnetic field is said to exist at a point if a force is A. exerted on a…
A wire of 5Ω resistance is drawn out so that its new length is two…
A wire of 5Ω resistance is drawn out so that its new length is two times the original…
I the diagram above, what would happen to the current I, if another resistor, R2,…
I the diagram above, what would happen to the current I, if another resistor, R2, is connected in…
The operation of an optical fibre is based on the principal of
The operation of an optical fibre is based on the principal of A. dispersion of light B. interference…
A positive charged rod X is brought near as uncharged metal sphere Y and is…
A positive charged rod X is brought near as uncharged metal sphere Y and is then touched by…
In the diagram above, if each of the resistors can dissipate a maximum of 18W…
In the diagram above, if each of the resistors can dissipate a maximum of 18W without becoming excessively…
A 2000W electric heater is used to heat a metal object of mass 5kg initially…
A 2000W electric heater is used to heat a metal object of mass 5kg initially at 10oC. If…
If 1.2 x 106J of heat energy is given off in 1 sec from a…
If 1.2 x 106J of heat energy is given off in 1 sec from a vessel maintained at…