According to the given statement the width of the center maximum is 0.0077 m.
The distance between two wave crests, which also applies to troughs, is known as the wavelength. Cycles per second (Hz), the number of vibrations that pass across a certain region in a second, is used to measure frequency (Hertz). The link between frequency and wavelength is discussed in this article.
By measuring the separation between two identical locations on adjacent waves, the wavelengths can always be found. When determining the wavelength of a waveguide, the distance from one compress to the next or from one deformation to the next is measured.
d=580nm=580×10 −9 m
d=0.3mm=0.0003m
width of the cental maxima
= 2λD/ d
= 2 * 580 * 10-9 * 2 / 0.0003
= 0.0077 m
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The complete question is -
Monochromatic light of wavelength 580 mm incident on a slit of width 0.30 mm. The screen 2 m from the slit. the width of the center maximum is
