Alight with a second-order bright band forms a diffraction angle of 30.0°. the diffraction grating has 250.0 lines per mm. the wavelength of the light is nm.

The wavelength of the light isi 1000Nm

Answer : wavelength, λ = 1000 nm

Explanation :

It is given that,

Diffraction angle,

The diffraction grating has 250 lines per mm\

For bright band the equation of grating is given by :

n = order, here n is 2

Since, d = 1/N

λ = 0.000001 m

or

λ = 1000 nm

So, the wavelength of the light is 1000 nm.

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explanation:

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6