10. In a double-slit experiment, if the slit separation is decreased, which of the following happens to the interference pattern shown on the screen? (circle the correct answer: a - e) a) The maxima get further apart. b) The minima get closer together. c) The minima stay at the same position. d) The maxima stay at the same position. e) The minima and maxima stay at the same position.

16. If the first-order maxima of a diffraction grating occurs at 6.2° for light with a wavelength of 475 nm, a) What is the slit spacing? b) How many slits are in the grating if the grating is 1.33 cm long?

The picture must be included.Answer must includecorrect units

"L" = 6.0 m "d" = 0.05 mm "lambda" = 673 nm Light of wavelength "lambda" passes through a double slit of width "d" and an interference pattern is produced on a screen, a distance "L" away from the slits. What is the distance between the 1st and 6th dark spot on the screen?

3. A particular diffraction grating has 1 300 grooves per millimeter, and 15.0 mm of illuminated area. a) Assuming an incident angle of 45.0°, calculate the diffraction angle for first-order light at 625 nm. b) What wavelength of light would give this same diffraction angle in the second order? )What is the first-order resolving power of the grating? d) What must be the separation (in nm) of two first-order spectral lines centered at 625 nm if they are to be resolved? e) What is the angular dispersion (in degrees) between the two lines in part (d) asthey emerge from the grating?

In a one slit diffraction experiment using a red laser the distance from the central bright spot to the first diffraction minimum is measured to be 2.0 cm. If you replace the original mask with a new one with a wider slit, how does the distance from the central bright spot to the first diffraction minimum change? a) distance gets smaller b) distance gets larger c) distance stays the same d) not enough information to tell