A single slit, 1400 nm wide, forms a diffraction pattern when illuminated by monochromatic light of 490 nm wavelength. Find the largest angle from the central maximum at which the intensity is zero.

What is the highest order maximum that can be obtained with a diffraction grating that has 900 lines per mm for light of a wavelength of 450 nm?    Question 7 options:   m = 6   m = 5   m = 4   m = 3   None of the other responses are correct.

White light is incident on a diffraction grating with 2500 lines/cm. The screen is at a distance of 3.0 m. At what point nearest the central maximum will a maximum for red light (λ=600 nm) coincide with a maximum for violet light ( λ=400nm)? Identify the order of each maximum.

Monochromatic light (wavelength = 455 nm) is incident perpendicularly on a single slit (width = 0.56 mm). A screen is placed parallel to the slit plane, and on it the distance between the two minima on either side of the central maximum is 2.1 mm. (a) What is the distance from the slit to the screen? (Hint: The angle to either minimum is small enough that sin ≈ tan 9.) (b) What is the distance on the screen between the first minimum and the third minimum on the same side of the central maximum? (a) Number 120 (b) Number i 1.8 Units Units cm mm