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प्रश्न
Draw the intensity pattern for double slit interference.
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उत्तर
Intensity pattern for double slit interference:
संबंधित प्रश्न
(i) State the essential conditions for diffraction of light.
(ii) Explain diffraction of light due to a narrow single slit and the formation of pattern of fringes on the screen.
(iii) Find the relation for width of central maximum in terms of wavelength 'λ', width of slit 'a', and separation between slit and screen 'D'.
(iv) If the width of the slit is made double the original width, how does it affect the size and intensity of the central band?
Why cannot two independent monochromatic sources produce sustained interference pattern?
Deduce, with the help of Young's arrangement to produce interference pattern, an expression for the fringe width.
A parallel beam of light of 450 nm falls on a narrow slit and the resulting diffraction pattern is observed on a screen 1.5 m away. It is observed that the first minimum is at a distance of 3 mm from the centre of the screen. Calculate the width of the slit.
Which items are used to form the narrow, uniform slit?
Which electric bulb is required for the observation?
In what order are the colour filters used when repeating the observation?
What happens to the bands when the slit width is narrowed?
What fringe pattern is observed through a red colour filter?
Why is the fringe pattern narrower with a blue colour filter?
Why do coloured fringes appear with white light and no filter?
