First Terminal Examination 2015 ime: 3 hrs.
Group 'A'
nswer in brief all questions:
(4x
A wire of resistance 'R' is stretched to half of its original diameter. What is the new resistance?
What is Faraday constant?
The terminal p. d. of cell is greater or less than its e. m.f, when cell is charged by a source?
What is the origin of thermo-e. m.f?
swer in brief all questions:
[4
How is the production of x-rays inverse of photo-electric effect?
Electron and proton passes through an electric field with same velocity. Which one will have
curvature?
A small volume say 1 cm' of nuclei can not be carried even by a crane, why?
Show that electron can not exist inside the nucleus on the basis of uncertainty principle.
ver in brief.
3​