please help me with these I really need this so badly! The second question courtly fit but it said ( referring to the above diagram determine the angle of reflection from the second mirror) the options are 58, 53, 32, 37

Monochromatic light is directed at a diffraction grating ruled with 4.50 x 104 lines/m. The maxima on a screen is 3.00 m away are 2.98 x 10"2 m apart. What is the wavelength of the light? O 2.21 x 107 m 0 447 m 2.23 x 10-3 m 0 4.15 x 107 m Prev Next micror 1 A ray of light hits the first mirror at point I and is 1110 reflected to the second mirror. mirror 2 where it is reflected again. Referring to the above diagram, determine the angle of reflection from the