Explanation:
Charge distribution:
Due to charge distribution, intersection by the closed surface of conducting sphere containing the positive charge. So we can say that the flux of the electric field through the closed surface will become positive.
$\therefore\phi=\frac{\text{q}_{\text{in}}}{\in_0}\Rightarrow+\text{ve}$
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X-ray will travel minimum distance in
|
(a) Air |
(b) Iron |
(c) Wood |
(d) Water |
$\frac{\mu_0}{4\pi}\frac{2\text{M}}{\text{d}^3}$
In a fission reaction 
, the binding energy per nucleon of X and Y is 8.5 MeV whereas of 
is 7.6 MeV. The total energy liberated will be about
|
(a) 200 KeV |
(b) 2 MeV |
(c) 200 MeV |
(d) 2000 MeV |
An equiconvex lens of glass of focal length 0.1 metre is cut along a plane perpendicular to principle axis into two equal parts. The ratio of focal length of new lenses formed is
|
(a) 1 : 1 |
(b) 1 : 2 |
(c) 2 : 1 |
(d) 2 : |
