Ohm’s law valid
Ohm's law valid Options (a) only for conductors (b) for semiconductors (c) for triode valves (d) for all materials Correct…
7 years ago
AFMC2006
Length of a conductor is 50 cm radius of cross section 0.1 cm and resistivity
Length of a conductor is 50 cm radius of cross section 0.1 cm and resistivity of the conductor=5x10⁻⁵ Ω cm⁻¹.…
7 years ago
The emission line of Lyman corresponds to the absorption line in laboratory temperature
The emission line of Lyman corresponds to the absorption line in laboratory temperature. The emission line of Balmer at room…
7 years ago
In which case positive work has to be done in seperating them?
In which case positive work has to be done in seperating them? Options (a) electron-electron (b) proton-proton (c) neutron-neutron (d)…
7 years ago
The order of distance of an electron revolving in an atom from nucleus is
The order of distance of an electron revolving in an atom from nucleus is Options (a) 10⁻¹² m (b) 10⁻¹⁰…
7 years ago
Mass and diameter of a ring is 2 kg and 1 m respectively. The moment of inertia
Mass and diameter of a ring is 2 kg and 1 m respectively. The moment of inertia of ring about…
7 years ago
In N-type semi-conductor current is due to
In N-type semi-conductor current is due to Options (a) Electrons (b) Holes (c) Electrons and holes (d) None of these…
7 years ago
If the minimum energy of photons needed to produce photoelectrons is 3 eV,
If the minimum energy of photons needed to produce photoelectrons is 3 eV, bombardinbg the photoelectric material by a number…
7 years ago
The energy of groundstate (n=1) of hydrogen level is -13.6 eV. The ionistation
The energy of groundstate (n=1) of hydrogen level is -13.6 eV. The ionistation potential of the hydrogen atom is Options…
7 years ago
Length of second pendulum is
Length of second pendulum is Options (a) 100 cm (b) 60 cm (c) 120 cm (d) 80 cm Correct Answer:…
7 years ago