In YDSE set up (see fig.), the light sources executes SHM between P and Q according to the equation `x = A sin omega t`, S being the mean position. Assume `d rarr 0` and `A lt lt L`. `omega` is small enough to neglect Doppler effect. If the sources were stationary at S, intenstiy at O would be `I_(0)` Read the paragraph carefully and answer the following questions. When the source comes toward the point Q,A. the bright fringe will be less bright.B. the dark fringe will no longer remain darkC. the fringe width will increaseD. none of these

In YDSE set up (see fig.), the light sources executes SHM between P an

1.	In YDSE set up (see fig.), the light sources executes SHM between P and Q according to the equation `x = A sin omega t`, S being the mean position. Assume `d rarr 0` and `A lt lt L`. `omega` is small enough to neglect Doppler effect. If the sources were stationary at S, intenstiy at O would be `I_(0)` Read the paragraph carefully and answer the following questions. When the source comes toward the point Q,A. the bright fringe will be less bright.B. the dark fringe will no longer remain darkC. the fringe width will increaseD. none of these
Answer» Correct Answer - d Intensity of the fringes will increase.

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Angular width of central maxima in the Fraunhofer diffraction pattern of a slit is measured. The slit is illuminated by light of wavelength `6000Å`. When the slit is illuminated by light of another wavelength, the angular width decreases by 30%. The wavelength of this light will beA. `3500 Å`B. `4200 Å`C. `4700 Å`D. `6000 Å`
Find the half angular width of the central bright maximum in the fraunhofer diffraction pattern of a slit of width `12xx10^(-5)cm` when the slit is illuminated by monochromatic light of wavelength 6000 Å.
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What will be the angular width of central maxima in Fraunhofer diffraction when light of wavelength `6000Å` is used and slit width is `12xx10^-5cm`?A. (a) `2rad`B. (b) `3rad`C. (c) `1rad`D. (d) `8rad`
A light wave is incident normally over a slit of width `24xx10^-5cm`. The angular position of second dark fringe from the central maxima is `30^@`. What is the wavelength of light?A. `6000 Å`B. `5000 Å`C. `3000 Å`D. `1500 Å`
Light of wavelength `6328 Å` is incident normally on a slit of width 0.2 mm. Angular width of the central maximum on the screen will be :A. `0.9^(@)`B. `0.18^(@)`C. `0.54^(@)`D. `0.36^(@)`
Light of wavelength `6328 Å` is incident normally on a slit of width 0.2 mm. Angular width of the central maximum on the screen will be :A. `0.36^(@)`B. `0.18^(@)`C. `0.72^(@)`D. `0.09^(@)`
Light wavelength 6000 Å is incident normally on a slit of width `24xx10^(-5)` cm. find out the angular position of seconds minimum from central maximum?A. `12 xx 10^(-5)cm`B. `18xx10^(-5)cm`C. `24xx10^(-5)cm`D. `36xx10^(-5)cm`
Light wavelength 6000 Å is incident normally on a slit of width `24xx10^(-5)` cm. find out the angular position of seconds minimum from central maximum?

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