The angular dispersion produced by a prism:
Explanation:
If $\mu$ is the average refractive index and A is the angle of prism, then the angular dispersion produced by the prism is given by $\delta=(\mu-1)\text{A}.$
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A capacitor of capacity 
is charged to the potential of 
. On disconnecting with the battery, it is connected with a capacitor of capacity 
as shown in the adjoining figure. The ratio of energies before and after the connection of switch S will be
|
(a) ( |
(b) |
(c) |
(d) |
In Young's double slit experiment, if the two slits are illuminated with separate sources, no interference pattern is observed because
|
(a) There will be no constant phase difference between the two waves |
|
(b) The wavelengths are not equal |
|
(c) The amplitudes are not equal |
|
(d) None of the above |
An electron moving in a circular orbit of radius r makes n rotation per second. The magnetic field produced at the centre has a magnitude of
|
(a) |
(b) |
(c) |
(d) Zero |
