Can you help me how to find the wavelength of the laser using: m = d sin

# 1 # 12 # 3 # 4 # 5 Diffraction Grating L I X L Ked Laser 142. 69 / 31.83 63,3 24:89/ 18. 27 5.50 17.54 194.73 68. 43 Green Laser 13. 15 / 8. 33/23. /14. 50/ 40. (23, 28/ 57./ 35,/62. 91 17 59/ 26. 23 46 / 17 Violet laser 13. 75 7.21 /43. / 19.50 /65 . 129. 72,/ 81, 182. 38 89 36 / 61 /91 36 51 73 of grooves for Riffraction Grating = 13, 40 0