Question: I need help in this question as soon as possible. Thank you and really appreciate! 2) A diffraction grating is placed 180 am from a

I need help in this question as soon as possible. Thank you and really appreciate!

2) A diffraction grating is placed 180 am from a screen. The grating is designed so that in The first order spectrum the red light of wavelength 700 Am is located at an angle of 50 a) What will be the locations of the red ('70 0nm ) and blue (400 nm ) light on the screen? 6) what is The number of lines per centimeter needed within the grating to produce this spread.&quot

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