- AFerromagnetic material.
- BParamagnetic material.
- CDiamagnetic material.
- DNone of these options.
Explanation:
Ferromagnetic materials display higher magnetic susceptibility.
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
AB and CD are long straight conductor, distance d apart, carrying a current I. The magnetic field at the midpoint of BC is
|
(a) |
(b) |
(c) |
(d) |
When photon of energy 4.25 eV strike the surface of a metal A, the ejected photoelectrons have maximum kinetic energy TA eV and de-Brolie wavelength
. The maximum kinetic energy of photoelectrons liberated from another metal B by photon of energy 4.70 eV is
If the de-Broglie wavelength of these photoelectrons is
, then
|
(a) The work function of A is 2.25 eV |
(b) The work function of B is 4.20 eV |
|
(c) |
(d) |
Which of the following is dependent on the intensity of incident radiation in a photoelectric experiment
|
(a) Work function of the surface |
|
(b) Amount of photoelectric current |
|
(c) Stopping potential will be reduced |
|
(d) Maximum kinetic energy of photoelectrons |
The magnetic induction at the centre O in the figure shown is
|
(a) |
(b) |
(c) |
(d) |
Which of the following materials is non crystalline
|
(a) Copper |
(b) Sodium chloride |
(c) Wood |
(d) Diamond |