α-particles, deuterons and protons of same energy are moving in a perpendicular
α-particles, deuterons and protons of same energy are moving in a perpendicular magnetic field. The ratio of diameters of their…
7 years ago
JK2006
When photons of energy hν are incident on the surface of photosensitive
When photons of energy hν are incident on the surface of photosensitive material of work function hν₀, then Options (a)…
7 years ago
The photoelectric threshold frequency of a metal is ν. When light of frequency 4ν
The photoelectric threshold frequency of a metal is ν. When light of frequency 4ν is incident on the metal, the…
7 years ago
An inductor is connected to an a.c. source when compared to voltage,
An inductor is connected to an a.c. source when compared to voltage, the current in the lead wires Options (a)…
7 years ago
A galvanometer has a resistance 50Ω. A resistance of 5Ω is connected parallel to it.
A galvanometer has a resistance 50Ω. A resistance of 5Ω is connected parallel to it. Fraction of the total current…
7 years ago
A charged particle enters a uniform magnetic field with a certain speed at right angles
A charged particle enters a uniform magnetic field with a certain speed at right angles to it. In the magnetic…
7 years ago
If longitudinal strain for a wire is 0.03 and its poisson’s ratio is 0.5
If longitudinal strain for a wire is 0.03 and its poisson's ratio is 0.5, then its lateral strain is Options…
7 years ago
Electrons in the atom are held to the nucleus by
Electrons in the atom are held to the nucleus by Options (a) Coulomb's forces (b) nuclear forces (c) van der…
7 years ago
Mass of the nucleons together in a heavy nucleus is
Mass of the nucleons together in a heavy nucleus is Options (a) greater than mass of nucleus (b) equal to…
7 years ago
Ratio of the radii of the nuclei with mass numbers 8 and 27 would be
Ratio of the radii of the nuclei with mass numbers 8 and 27 would be Options (a) 27 / 8…
7 years ago