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​

Jessie ran 5000 meters from the cops and an average speed of 6 meters / second before he got caught . how long did he run?

Two vectors are shown. which statement best compares the vectors? vector x has greater magnitude than vector y. vector y has greater magnitude than vector x. the vectors have the same displacement. the vectors have the same direction.

An charge with mass m and charge q is emitted from the origin, (x,y)=(0,0). a large, flat screen is located at x=l. there is a target on the screen at y position y(h), where y(h) > 0. in this problem, you will examine two different ways that the charge might hit the target. ignore gravity in this problem. 1.assume that the charge is emitted with velocity v(0) in the positive x direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive y direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l. 2.now assume that the charge is emitted with velocity v(0) in the positive y direction. between the origin and the screen, the charge travels through a constant electric field pointing in the positive x direction. what should the magnitude e of the electric field be if the charge is to hit the target on the screen? express your answer in terms of m, q, y(h), v(0), and l.