In electromagnetic spectrum, the frequencies of γ-rays and x-rays and ultraviolet rays
In electromagnetic spectrum, the frequencies of γ-rays and x-rays and ultraviolet rays are denoted by n₁,n₂ and n₃ respectively, then…
7 years ago
MH2014
The ratio of magnetic dipole moment of an electron of charge e and mass m
The ratio of magnetic dipole moment of an electron of charge e and mass m in Bohr's orbit in hydrogen…
7 years ago
In cyclotron, for a given magnet, radius of the semicircle traced by positive ion
In cyclotron, for a given magnet, radius of the semicircle traced by positive ion is directly proportional to (where, v=velocity…
7 years ago
Magnetic induction produced at the centre of a circular loop carrying current is B.
Magnetic induction produced at the centre of a circular loop carrying current is B. The magnetic moment of the loop…
7 years ago
The equiconvex lens has focal length f. If it is cut perpendicular to the principal
The equiconvex lens has focal length f. If it is cut perpendicular to the principal axis passing through optical centre,…
7 years ago
In vacuum, to travel distance d, light takes time t and in medium to travel distance
In vacuum, to travel distance d, light takes time t and in medium to travel distance 5d, it takes time…
7 years ago
Which of the following produces erythroprotein?
Which of the following produces erythroprotein? Options (a) kidney (b) pancreas (c) Pineal gland (d) thyroid gland Correct Answer: kidneyExplanation:No…
7 years ago
Two charges of equal magnitude q are placed in air at a distance 2a
Two charges of equal magnitude q are placed in air at a distance 2a apart and third charge -2q is…
7 years ago
Two concentric spheres kept in air have radii R and r.
Two concentric spheres kept in air have radii R and r. They have similar charge and equal surface charge density…
7 years ago
In common base circuit of a transistor, current amplification factor is 0.95.
In common base circuit of a transistor, current amplification factor is 0.95. Calculate the emitter current, if base current is…
7 years ago