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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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To solve the problem of why no interference pattern will be observed on the screen in Young's double slit experiment when illuminated by two different sodium lamps emitting light of the same wavelength, we can follow these steps: ### Step-by-Step Solution 1. **Understanding the Setup**: In Young's double slit experiment, two slits (S1 and S2) are illuminated by light sources. In this case, the sources are two different sodium lamps. 2. **Identifying the Sources**: Each sodium lamp is a separate light source. Even though they emit light of the same wavelength, they are distinct sources. ...
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Answer the following: (a) what are coherent sources of light ? Two slits in Young's double slit experiments are illuminated by two different sodium lamps emitting light of the same wavelength. Why is no interference pattern observed? (b) Obtain the condition for getting dark and bright fringes in Young's experiment. Hence write the expression for the fringe width. (c) If s is the size of the source and its distance from the plane of the two slits, what should be the criterion for the interference fringes to be seen?

Answer the following: (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 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

  • The slits in Young's double slit experiment are illuminated by light of wavelength 6000 Ã…. If the path difference at the central bright fright fringe is zero, what is the path difference for light from the slits at the fourth bright frings?

    A
    `2.4xx10^(-6)m`
    B
    `1.2xx10^(-6)m`
    C
    `10^(-6)m`
    D
    `0.5xx10^(-6)m`

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