Agrating with 410 grooves/mm is used with an incandescent light source. assume the visible spectrum to range in wavelength from 400 nm to 700 nm. how many orders can one see the entire visible spectrum

To solve this problem it is necessary to apply the Bragg's law which allows to study the directions in which the diffraction of X-rays on the surface of a crystal produces constructive interference.

Extrapolating the equation and obtaining its mathematical meaning we have to

Where

d = Separation between slits

wavelength

n = Order number representing the number of repetition of the spectrum

Angle between the source and the screen at this case are perpendicular

At the same time we have that the grating for this case is given as

Using the previous equation to find the order number we have that

For the first wavelength

For the second wavelength

Therefore the number of orders in which the visible spectrum exists is

Therefore the number of order can one see the entire visible spectrum 3.

v=ir = 3x15 =45 v

1.195000

explanation:

total mass=0.0117+0.0137+0.0881+0.0111

total mass= 0.01172kg

total velocity = 0.283-0.743+0.871-0.799+0.155+0.637+0.301=0.102

momentum=mv=0.1172*0.102=1.195000//