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Consider sunlight incident on a pinhole of width $10^3 Å$.
The image of the pinhole seen on a screen shall be
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The image of the pinhole seen on a screen shall be
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Verified Answer
The correct answers are:
different from a geometrical image
,
diffused coloured region around a sharp central white spot
different from a geometrical image
,
diffused coloured region around a sharp central white spot
As given that,
The width of pinhole $=10^3 Å=1000 Å$
As we know that,
Wavelength of visible light in sunlight ranges varies from $4000 Å$ to $8000 Å$
So, clearly, wavelength $\lambda < $ width of the slit
So, light from pinhole will diffracted from the hole. Due to diffraction pattern from the slight or fringes the image formed on the screen will be different from the geometrical image.
The width of pinhole $=10^3 Å=1000 Å$
As we know that,
Wavelength of visible light in sunlight ranges varies from $4000 Å$ to $8000 Å$
So, clearly, wavelength $\lambda < $ width of the slit
So, light from pinhole will diffracted from the hole. Due to diffraction pattern from the slight or fringes the image formed on the screen will be different from the geometrical image.
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