Category: Physics
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With a certain exciting radiation of a particular frequency, to which hydrogen atoms are exposed, the maximum number of spectral lines obtainable in the emission is 15. The uppermost energy level to which the electron is excited is
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If vectors A = cosωt + sinωt and B = (cosωt/2) + (sinωt/2) are functions of time, then the value of t at which they are orthogonal to each other is
1 t= π/4ω 2 t= π/2ω 3 t= π/ω 4 t=0
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QSM: An element is placed at the origin and carries a large current of (as shown in the figure). What is the magnetic field on the axis at a