The work done in rotating a magnetic of magnetic moment 2 A-m² in
The work done in rotating a magnetic of magnetic moment 2 A-m² in a magnetic field of 5 x 10³…
7 years ago
Physics
By sucking through a straw, a student can reduce the pressure of his lungs
By sucking through a straw, a student can reduce the pressure of his lungs to 750 nm of Hg (density…
7 years ago
Two coils of self inductance 2 mH and 8 mH are placed so close together
Two coils of self inductance 2 mH and 8 mH are placed so close together that the effective flux in…
7 years ago
The refractive index of water, glass and diamond are 1.33, 1.50, 2.40 respectively
The refractive index of water, glass and diamond are 1.33, 1.50, 2.40 respectively. The refractive index of diamond relative to…
7 years ago
A block of 2 kg is kept on the floor. The coefficient of static friction is 0.4
A block of 2 kg is kept on the floor. The coefficient of static friction is 0.4. If a force…
7 years ago
A body A experiences perfectly elastic collision with a stationary body B
A body A experiences perfectly elastic collision with a stationary body B. If after collision the bodies fly apart in…
7 years ago
The time period of a thin bar magnet in Earth’s magnetic field is T
The time period of a thin bar magnet in Earth's magnetic field is T. If the magnet is cut into…
7 years ago
A light whose frequency is equal to 6.0 x 10¹⁴ Hz is incident on a metal
A light whose frequency is equal to 6.0 x 10¹⁴ Hz is incident on a metal whose work function is…
7 years ago
The current in the windings of a toroid is 2.0 A. There are 400 turns
The current in the windings of a toroid is 2.0 A. There are 400 turns and the mean circumferential length…
7 years ago
The maximum and minimum magnitudes of the resultant of two vectors
The maximum and minimum magnitudes of the resultant of two vectors are 17 units and 7 units respectively. If these…
7 years ago