- AS1 is true but S2 is false.
- BBoth S1 and S2 are false.
- CS1 is true, S2 is also true and S1 is the cause of S2.
- DS1 is true, S2 is also true, but the statements are independant.
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If the separation between slits in Young’s double slit experiment is reduced to the fringe width becomes n times. The value of n is
|
(a) 3 |
(b) |
(c) 9 |
(d) |
A coil having n turns and resistance R W is connected with a galvanometer of resistance 4RΩ. This combination is moved in time t seconds from a magnetic field W1 weber to W2 weber. The induced current in the circuit is
|
(a) |
(b) |
(c) |
(d) |
Two infinite plane parallel sheets separated by a distance d have equal and opposite uniform charge densities σ. Electric field at a point between the sheets is
|
(a) Zero |
(b) |
|
(c) |
(d) Depends upon the location of the point |
A small coil of N turns has an effective area A and carries a current I. It is suspended in a horizontal magnetic field such that its plane is perpendicular to
. The work done in rotating it by 180° about the vertical axis is
|
(a) NAIB |
(b) 2NAIB |
(c) 2πNAIB |
(d) 4πNAIB |