If the distance between the third fringe and nineth fringe is 0.4 nm and the wavelength of light used is 6000 am and the distance between the source and screen is 80 cm. calculate the separation between two slits

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If the distance between the third fringe and nineth fringe is 0.4 nm and the wavelength of light used is 6000 am and the distance between the source and screen is 80 cm. calculate the separation between two slits

Divyal 23rd Jun, 2020

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Satyam Dengre 21st Jul, 2020

x=n * lamda*D/d

9x-3x=(9-3)6000am*80cm/d

0.4nm=36000am*80cm/d

d= 80*36000/4 cm

d=72000 cm

according to your given data

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