The position of the direct image obtained at 
, when a monochromatic beam of light is passed through a plane transmission grating at normal incidence is shown in figure.
The diffracted images 
and 
correspond to the first, second and third order diffraction. When the source is replaced by another source of shorter wavelength,
A
all the four will shift in the direction 
to 
to B
all the four will shift in the direction 
to 
to C
the images 
and 
will shift towards 
and will shift towards D
the images 
and 
will shift away from 
and will shift away from
Text Solution
Verified by ExpertsThe correct answer is:
C
As 
for minima
. So, if 
so image will shift towards.
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