Light emitted during the de excitation of electron from n=3 to n=2, when incident
Light emitted during the de excitation of electron from n=3 to n=2, when incident on a metal, photoelectrons are just…
7 years ago
KA2013
In R-L-C series circuit, the potential differences across each element is 20 V.
In R-L-C series circuit, the potential differences across each element is 20 V. Now the value of the resistance alone…
7 years ago
For a transformer, the turns ratio is 3 and its efficiency is 0.75. The current flowing
For a transformer, the turns ratio is 3 and its efficiency is 0.75. The current flowing in the primary coil…
7 years ago
Which of the following phenomena support the wave theory of light?
Which of the following phenomena support the wave theory of light? 1. Scattering 2. Interference 3. Diffraction 4. Velocity of…
7 years ago
A series combination of resistor (R), capacitor (C), is connected to an AC source
A series combination of resistor (R), capacitor (C), is connected to an AC source of angular frequency ω. Keeping the…
7 years ago
A charged particle with a velocity 2×10³ ms⁻¹ passes undeflected through electric field
A charged particle with a velocity 2x10³ ms⁻¹ passes undeflected through electric field and magnetic fields in mutually perpendicular directions.…
7 years ago
Electromagnetic induction is not used in
Electromagnetic induction is not used in Options (a) speedometer (b) transformer (c) AC generator (d) room heater Correct Answer: room…
7 years ago