In a Young's double-slit experiment set up, source S of wavelength `6000 Å` illuminates two slits `S_(1)` and `S_(2)` which act two coherent sources. The sources S oscillates about its shown position according to the eqation `y = 1 + cos pi t`, where y is in millimeter and t in second.

At `t = 2` s, the position of central maxima is

In a Young's double-slit experiment set up, source S of wavelength 6000 Å illuminates two slits S_(1) and S_(2) which act two coherent sources. The sources S oscillates about its shown position according to the eqation y = 1 + cos pi t , where y is in millimeter and t in second. At t = 1 s, a slab of thickness 2 xx 10^(-3) mm an refractive index 1.5 is placed just in front of S_(1) . The central maximum is formed at

In a Young's double-slit experiment set up, source S of wavelength 6000 Å illuminates two slits S_(1) and S_(2) which act two coherent sources. The sources S oscillates about its shown position according to the eqation y = 1 + cos pi t , where y is in millimeter and t in second. At t = 0 , fringe width is beta_(1) , and at t = 2 s, width of figure is beta_(2) . Then

In a Young's double-slit experiment set up, source S of wavelength 6000 Å illuminates two slits S_(1) and S_(2) which act two coherent sources. The sources S oscillates about its shown position according to the eqation y = 1 + cos pi t , where y is in millimeter and t in second. At t = 0 , fringe width is beta_(1) , and at t = 2 s, width of figure is beta_(2) . Then

In young's double-slit experiment set up, sources S of wavelength 50 nm illumiantes two slits S_(1) and S_(2) which act as two coherent sources. The sources S oscillates about its own position according to the equation y = 0.5 sin pi t , where y is in nm and t in seconds. The minimum value of time t for which the intensity at point P on the screen exaclty in front of the upper slit becomes minimum is

In young's double-slit experiment set up, sources S of wavelength 50 nm illumiantes two slits S_(1) and S_(2) which act as two coherent sources. The sources S oscillates about its own position according to the equation y = 0.5 sin pi t , where y is in nm and t in seconds. The minimum value of time t for which the intensity at point P on the screen exaclty in front of the upper slit becomes minimum is

In young’s double slit experiment with a source of light of wavelength 6320Å , the first maxima will occur when