Question

In a ydse apparatus the source is kept asshown. None of the slits receives direct light but get it after reflection by mirrors as shown if d=100lambda and d=50000lambda then distance of central maxima from centre of screen

Answer 1

seperation of central maxima to centre of screen is 500λ

seperation between two slits, d = 100λ

seperation between slits and screen, D = 50000λ

wavelength of monochromatic light = λ

using formula, distance of central maxima from the centre of screen, x = λD/d

= λ(50000λ)/(100λ)

= 500λ

hence the seperation of central maxima to centre of screen is 500λ

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Answer 2

$\huge\bold\purple{Answer:-}$

seperation between two slits, d = 100λ

seperation between slits and screen, D = 50000λ

wavelength of monochromatic light = λ

using formula, distance of central maxima from the centre of screen, x = λD/d

= λ(50000λ)/(100λ)

= 500λ

hence the seperation of central maxima to centre of screen is 500λ