In a single slit diffraction set up, second minima is observed at an angle of `60^(@)`. The expected position of first minima is

In a single slit diffraction set-up, the screen is placed at a distance of 80 cm from a slit. Light of 5,000 Å is illuminated on the slit, the diffraction pattern is oberved on the screen. Determine the aperture of the slit if distance between first and second minima is 2.1 mm.

The first minimum of a single slit diffraction pattern is observed at angle 2^(@) with a light of wavelength 698 nm. The width of this slit is

In a diffraction pattern due to a single slit of width a, the first minimum is observed at an angle 30^(@) when light of wavelength 5000Å is incident on the slit. The first secondary maximum is observed at an angle of

In a diffraction pattern due to a single slit of width a, the firt minimum is observed at an angle 30^(@) when light of wavelength 5000 Å is incident on the slit. The first secondary miximum is observed at an angle of

In a diffraction pattern due to a single slit of width a, the first minimum is observed at an angle 30^(@) when light of wavelength 5000 Å is incident on the slit. The first secondary maximum is observed at an angle of ...

From large distance microwaves fall on a long slit of width 5cm. If the first diffraction minima is obtained at an angle 30^(@) form the direct vision slit line then find the wavelength of the microwaves. [2.5 cm]

In a diffraction pattern due to single slit of width 'a' , the first minimum is observed at an angle 30^(@) when light of wavelength 5000 Å is inclined on the slit. The first secondary maximum is observed at an angle of:

Visible light of wavelength 6000 xx 10^(-8) cm fall normally on a single slit and produces diffraction pattern. It is found that the second diffraction minima is at 60^(@) from the centre maxima. If the first minima is produced at theta is close to