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Hi guys, I have a question here which I'm struggling to do and perhaps you could help ;

Monochromatic electromagnetic radiation with wavelength λ from a distant source passes through a slit. The diffraction pattern is observed on a screen 2.50 m from the slit.

If the width of the central maximum is 6.00 mm, what is the slit width a if the wavelength is 500 nm (visible light)?

What I have done is

y=(R(m+1/2)lambda) / d where y = 3mm (half of the central maximum width); R = 2.5m m = 0 lambda=500nm

d =( R(m+1/2)lambda) / y

d =( 2.5 * (1/2) * 500x10^-9 )/ 3x10^-3

and so I manage to obtain d = 2.08x10^-4 m, however this answer is wrong

what am I doing wrong?

Thanks !

Hi guys, I have a question here which I'm struggling to do and perhaps you could help ;

Monochromatic electromagnetic radiation with wavelength λ from a distant source passes through a slit. The diffraction pattern is observed on a screen 2.50 m from the slit.

If the width of the central maximum is 6.00 mm, what is the slit width a if the wavelength is 500 nm (visible light)?

What I have done is

y=(R(m+1/2)lambda) / d where y = 3mm (half of the central maximum width); R = 2.5m m = 0 lambda=500nm

d =( R(m+1/2)lambda) / y

d =( 2.5 * (1/2) * 500x10^-9 )/ 3x10^-3

and so I manage to obtain d = 2.08x10^-4 m, however this answer is wrong

what am I doing wrong?

Thanks !

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