Which scientist experimentally proved the existence of electromagnetic waves?
Options
(a) Sir J.C.Bose (b) Maxwell (c) Marconi (d) Hertz
Correct Answer:
Hertz
Explanation:
Hertz was the scientist who generated and detected Electromagnetic waves […]
The maximum number of possible interference maxima for slit-seperation equal to twice the wavelength, in young’s double slit experiment is
Options
(a) Infinite (b) five (c) three (d) zero
Correct Answer:
five
Explanation:
For […]
To demonstrate the phenomenon of interference, we require two sources which emit radiations
Options
(a) Of the same frequency and having a definite phase relationship (b) Of nearly the same frequency (c) Of […]
Huygen’s wave theory could not explain
Options
(a) Diffraction (b) Interference (c) Polarization (d) Photoelectric effect
Correct Answer:
Photoelectric effect
Explanation:
No explanation available. Be the first to write the explanation for this […]
Which of the following phenomena does not show the wavenature of light?
Options
(a) Diffraction (b) Interference (c) Refraction (d) Photoelectric effect
Correct Answer:
Photoelectric effect
Explanation:
No explanation available. Be the first […]
A double slit experiment is performed with light of wavelength 500 nm. A thin film of thickness 2 μm and refractive index 1.5 is introduced in the path of the upper beam. The location of […]
In Young’s double slit experiment, the slit seperation is 1 mm and the screen is 1 m from the slit. For a monochromatic light of wavelength 500 nm, the distance of 3rd minima from the […]
As a result of interference of two coherent sources of light, energy is
Options
(a) Increased (b) Redistributed and the distribution does not vary with time (c) Decreased (d) Redistributed and the distribution […]
In an interference experiment, third bright fringe is obtained at a point on the screen with a light of 700 nm. What should be the wavelength of the light source in order to obtain 5th […]
When a beam of light is used to determine the position of an object, the maximum accuracy is achieved if the light is
Options
(a) Polarised (b) Of longer wavelength (c) Of shorter wavelength […]
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