Charge q is uniformly spread on a thin ring of radius R. The ring rotates
Charge q is uniformly spread on a thin ring of radius R. The ring rotates about its axis with a…
7 years ago
AIPMT2011M
A short bar magnet of magnetic moment 0.4 JT⁻¹ is placed in a uniform magnetic field
A short bar magnet of magnetic moment 0.4 JT⁻¹ is placed in a uniform magnetic field of 0.16 T. The…
7 years ago
A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined
A thin prism of angle 15⁰ made of glass of refractive index µ₁ = 1.5 is combined with another prism…
7 years ago
A particle of masses m is thrown upwards from the surface of the earth, with a velocity u
A particle of masses m is thrown upwards from the surface of the earth, with a velocity u. The mass…
7 years ago
The electric potential V at any point (x,y,z) all in meters in space is given by
The electric potential V at any point (x,y,z) all in meters in space is given by V = 4x² volt.…
7 years ago
Pure Si at 500 K has equal number of electron (nₑ) and hole (nₕ) concentrations
Pure Si at 500 K has equal number of electron (nₑ) and hole (nₕ) concentrations of 1.5 x 10¹⁶ m⁻³.…
7 years ago
The threshold frequency for a photosensitive metal is 3.3 x 10¹⁴ Hz.
The threshold frequency for a photosensitive metal is 3.3 x 10¹⁴ Hz. If light of frequency 8.2 x 10¹⁴ Hz…
7 years ago
A thermocouple of negligible resistance produces an e.m.f. of 40 µV/⁰C in the linear range
A thermocouple of negligible resistance produces an e.m.f. of 40 µV/⁰C in the linear range of temperature. A galvanometer of…
7 years ago
An electron in the hydrogen atom jumps from excited state n to the ground state
An electron in the hydrogen atom jumps from excited state n to the ground state. The wavelength so emitted illuminates…
7 years ago
A coil has resistance 30 ohm and inductive reactance 20 ohmn at 50 Hz frequency.
A coil has resistance 30 ohm and inductive reactance 20 ohm at 50 Hz frequency. If an ac source, of…
7 years ago