The valence band and the conductance band of a solid overlap at low temperature
The valence band and the conductance band of a solid overlap at low temperature. The solid may be Options (a)…
7 years ago
Physics
If the wavelength of light in vacuum be, the wavelength in a medium of refractive index
If the wavelength of light in vacuum be, the wavelength in a medium of refractive index µ will be Options…
7 years ago
When a radioactive substance emits an ∝ particle, its position in the periodic table
When a radioactive substance emits an ∝ particle, its position in the periodic table is lowered by Options (a) one…
7 years ago
A particle is moving with a uniform velocity along a straight line path
A particle is moving with a uniform velocity along a straight line path. A force is not required to Options…
7 years ago
The rest mass of a body is m1. It moves with a velocity of 0.6c, then its relativistic
The rest mass of a body is m1. It moves with a velocity of 0.6c, then its relativistic mass if…
7 years ago
A black body is heated from 27° C to 127° C. The ratio of their energies of radiations
A black body is heated from 27° C to 127° C. The ratio of their energies of radiations emitted will…
7 years ago
The distance of a geo-stationary satellite from the centre of the earth is nearest to
The distance of a geo-stationary satellite from the centre of the earth is nearest to(where R=6400 km) Options (a) 5…
7 years ago
If the lattice parameter for a crystalline structure is 3.6 Å, then the atomic radius
If the lattice parameter for a crystalline structure is 3.6 Å, then the atomic radius in fcc crystal is Options…
7 years ago
Reactance of a capacitor of capacitance C µF for A.C freqency (400 / π) Hz is 25 ohm
Reactance of a capacitor of capacitance C µF for A.C freqency (400 / π) Hz is 25 ohm. The value…
7 years ago
A ball is dropped from a height of 20 cm. Ball rebounds to a height of 10cm
A ball is dropped from a height of 20 cm. Ball rebounds to a height of 10cm. What is the…
7 years ago