A glass plate 0.9cm thick has a refractive index of 1.50 . How long does it take for a pulse of light to pass through the plate?
3.0 X 10-10s
3.0 X 10-11s
4.5 X 10-10s
4.5 X 10-11s
In photoelectric effect, which of the following graphs correctly represents the graph of stopping potential V0 against frequency f of incident light?
The velocities of light in air and glass are 3.0 X 108 ms-1 and 2.0 x 108 ms-1 respectively . If the angle of refraction is 30°, the sine of the angle of incidence is
The correct shape of the graph of uv against (u + v) for an object distance u and image distance v in an experiment to find the focal length of a convex lens is given as