Is isn't a stream or rushing water. Or something like that?
Answer:
n = 1.76
Explanation:
According to the rule of ( n1 sin theta1 = n2 sin theta2 )
we know both angles so we insert them to the law and apply n1 = 1
so 1/2 = n2 sin 62 and we get the final answer
Explanation:
It is given that,
Wavelength of x-rays = 2 nm
Plane spacing, d = 0.281 nm
It is assumed to find the scattering angle for second order maxima.
For 2nd order, Bragg's law is given by :
![2d\sin\theta=n\lambda](https://tex.z-dn.net/?f=2d%5Csin%5Ctheta%3Dn%5Clambda)
For second order, n = 2
![\sin\theta=\dfrac{n\lambda}{2d}\\\\\sin\theta=\dfrac{2\times 2\ nm}{2\times 0.28\ nm}\\\\\theta=\sin^{-1}(7.14)](https://tex.z-dn.net/?f=%5Csin%5Ctheta%3D%5Cdfrac%7Bn%5Clambda%7D%7B2d%7D%5C%5C%5C%5C%5Csin%5Ctheta%3D%5Cdfrac%7B2%5Ctimes%202%5C%20nm%7D%7B2%5Ctimes%200.28%5C%20nm%7D%5C%5C%5C%5C%5Ctheta%3D%5Csin%5E%7B-1%7D%287.14%29)
Here, θ is not defined. Also, the wavelength of x-rays is more than the plane spacing. It means that it cannot produce any diffraction maximum.
45%, or 45/100 j. It's easy to find the percent if it's out of 100.
light can travel 5,874,601,670,040 in a year around the earth