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The two slits in Young's double slit exp...

The two slits in Young's double slit experiment are illuminated by two different sodium lamps emitting light of the same wavelength. No interference pattern will be observed on the screen.

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True. When the two slits of Young's double-slit experiment are illuminated by two different sodium lamps, then the sources are not coherent and hence sustained interference pattern will not be achieved. It will change so quickly that there will be general illumiation and hence intreference pattern will not be observed.
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Mark the statement true or false : (a) In Young's double slit expt, performed with a source of white light, only black and white fringes are observed. (b) Two slits in Young's double slit expt are illuminated by by two different sodium lamps emitting light of same wavelength. No interference pattern will be obtained.

(a) In Young's double slit experiment, the two slits are illuminated by two different lamps having same wavelength of light. Explain with reason, whether interference pattern will be observed on the screen or not. (b) Light waves waves from two coherent sources arrive at two points on a screen with path differences of 0 and lamda//2 . Find the ratio of intensities at the points.

Knowledge Check

  • STATEMENT-1 The two silts in YDSE are illuminated by two different sodium lamps emitting light of same wavelength .No interference pattern will be observed. STATEMENT-2 Two independent light sources (except LASER )cannot be coherent.

    A
    Statement-1 is true Statemetnt-2 is True,Statement -2 is a correct explanation for statement -1.
    B
    Statement-1 is true Statemetnt-2 is True,Statement -2 is NOT a correct explanation for statement -1.
    C
    Statement -1 is true,statement -2 is false
    D
    Statement -1 is False ,statement -2 is True.

  • In Yonung's double-slit experiment, two slits which are separated by 1.2 mm are illuminated with a monochromatic light of wavelength 6000 Å The interference pattern is observed on a screen placed at a distance of 1 m from the slits. Find the number of bright fringes formed over 1 cm width on the screen.

    A
    25
    B
    12
    C
    15
    D
    20

  • The fringe pattern observed on Young's double-slit experiment is

    A
    a diffraction pattern
    B
    an interference pattern
    C
    a combination of diffraction and interference pattern
    D
    neither a diffraction nor an interference pattern

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    The two slits in Young's double slit experiments are separted by a distance of 0.03 mm . When light of wavelength 5000 Å falls on the slits, an interference pattern is produced on the screen 1.5 m away. Find the distance of fourth bright fringe from the central maximum.

    In YDSE, two slits are illuminated by two light sources of same wavelength. Will you observe interference pattern ?

    Will there be an interference pattern on the screen if the slits in Young's experiment are illuminated by two different sodium lamps emitting light of same frequency and wavelength?

    In Young's double slit experiment, one slit is covered with red filter and another slit is covered by green filter, then interference pattern will be

    Yellow light emitted by sodium lamp in Young's double slit experiment is replaced by monochromatic bluw light of the same intensity :

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