In insulators (CB is Conduction Band and VB is Valence Band)
In insulators (CB is Conduction Band and VB is Valence Band) Options (a) VB is partially filled with electrons (b)…
7 years ago
MH2014
Light of wavelength λᴀ and λᴃ falls on two identical metal plates A and B respectively.
Light of wavelength λᴀ and λʙ falls on two identical metal plates A and B respectively. The maximum kinetic energy…
7 years ago
An electron in potentiometer experiences a force 2.4×10⁻¹⁹N. The length of potentiometer
An electron in potentiometer experiences a force 2.4x10⁻¹⁹N. The length of potentiometer wire is 6m. The emf of the battery…
7 years ago
In Wheatstone bridge, three resistors P,Q and R are conncected in three arms
In Wheatstone bridge, three resistors P,Q and R are conncected in three arms in order and 4th arm of resistance…
7 years ago
If, an electron in hydrogen atom jumps from an orbit of level n=3 to an orbit
If, an electron in hydrogen atom jumps from an orbit of level n=3 to an orbit of level n=2, emitted…
7 years ago
In L-C-R series circuit, an alternating emf e and current i are given by the equations
In L-C-R series circuit, an alternating emf e and current i are given by the equations e=100 sin (100t) V.…
7 years ago
A fringe width of a certain interference pattern is β=0.002 cm. What is the distance
A fringe width of a certain interference pattern is β=0.002 cm. What is the distance of 5th dark fringe centre?…
7 years ago
The de-broglie wavelength of an electron in 4th orbit is
The de-broglie wavelength of an electron in 4th orbit is ( where, r= radius of 1st orbit) Options (a) 2πr…
7 years ago
Two coherent sources of intensity ratio α interfere. In interference pattern,
Two coherent sources of intensity ratio α interfere. In interference pattern, Imax - Imin/ Imax+ Imin is equal to Options…
7 years ago
In electromagnetic wave, according to Maxwell, changing electric field gives
In electromagnetic wave, according to Maxwell, changing electric field gives Options (a) stationary magnetic field (b) conduction current (c) eddy…
7 years ago