In an experiment, a graph was plotted of the potential difference V between the terminals of a cell against the circuit current i by varying load rheostat. Internal conductance of the cell is given by
|
(a) xy |
(b) |
(c) |
(d) (x – y) |
(b) 
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Which one of the following planet has the longest day
|
(a) Venus |
(b) Mars |
(c) Mercury |
(d) Earth |
Consider the charge configuration and spherical Gaussian surface as shown in the figure. When calculating the flux of the electric field over the spherical surface the electric field will be due to
|
(a) |
(b) Only the positive charges |
|
(c) All the charges |
(d) + |
Two nucleons are at a separation of 1 
. The net force between them is 
, if both are neutrons, 
if both are protons and 
if one is a proton and other is a neutron. In such a case
|
(a) |
(b) |
(c) |
(d) |
The light of wavelength 6328 Å is incident on a slit of width 0.2 mm perpendicularly, the angular width of central maxima will be
|
(a) 0.36° |
(b) 0.18 ° |
(c) 0.72° |
(d) 0.09° |
