MCQ
A region surrounding a stationary electric dipoles has:
- AMagnetic field only.
- BElectric field only.
- CBoth electric and magnetic fields.
- DNo electric and magnetic fields.
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If is the intensity of the principal maximum in the single slit diffraction pattern, then what will be its intensity when the slit width is doubled
|
(a) |
(b) |
(c) 2 |
(d) 4 |
A ray of light travels from a denser to a rarer medium then, the ray:
By corpuscular theory of light, the phenomenon which can be explained is
|
(a) Refraction |
(b) Interference |
(c) Diffraction |
(d) Polarisation |