In: Physics

# Use equations 7 and 8 to determine the angle θ

Use equations 7 and 8 to determine the angle θ (in degrees) if the two positions of the first order spectral line are 35.0 cm and 65.0 cm. Assume the distance from the diffraction grating to the slit is 55 cm.

Equation 7: s= .5 (xr-xl)

Equation 8: tan? = s/L

## Solutions

##### Expert Solution

s=0.5*30=15

tan(theta)=15/55

i=arctan(3/11)=15.25degree(ans)