Advertisements
Advertisements
प्रश्न
How can you differentiate whether a pattern is produced by a single slit or double slit?
उत्तर
If all of the bands are the same width and intensity, a double slit pattern is generated. The width and intensity of the pattern produced by a single slit vary.
संबंधित प्रश्न
Explain why the maxima at `theta=(n+1/2)lambda/a` become weaker and weaker with increasing n
In Fraunhofer diffraction, how is the angular width of the central bright fringe affected when slit separation is increased?
Two wavelengths of sodium light 590 nm and 596 nm are used, in turn to study the diffraction taking place at a single slit of aperture 2 × 10−4m. The distance between the slit and the screen is 1.5 m. Calculate the separation between the positions of the first maxima of the diffraction pattern obtained in the two cases.
Direction of the first secondary maximum in the Fraunhoffer diffraction pattern at a single slit is given by (a is the width of the slit):
Which of the following device is used to study the spectra of light?
AC = CO = D, S1C = S2C = d << D
A small transparent slab containing material of µ = 1.5 is placed along AS2 (Figure). What will be the distance from O of the principal maxima and of the first minima on either side of the principal maxima obtained in the absence of the glass slab?
Write two points of difference between an interference pattern and a diffraction pattern.
In a diffraction pattern due to a single slit, how will the angular width of the central maximum change, if the slit width is decreased?
Justify your answer.
In the diagram shown, the separation between the slit is equal to 3λ, where λ is the wavelength of the light incident on the plane of the slits. A thin film of thickness 3λ and refractive index 2 has been placed in the front of the upper slit. The distance of the central maxima on the screen from O is ______.
Draw a labelled graph showing the variation in intensity of diffracted light with diffracting angle in a single slit Fraunhofer diffraction experiment.
