Question

QUESTION 10

A student took a laser with wavelength 532 nm and pointed the beam at a fiber. The student then observed the diffraction pattern on a paper positioned 85.4 cm past the fiber. The central maximum of the diffraction pattern had a width of 47.8 mm. What is the diameter of the fiber in micrometers (µm)? (State the answer in micrometers with 2 digits right of decimal.)

QUESTION 11

A microscope has an objective lens which is circular and has a focal length of 26.8 mm and a diameter of 7.50 mm. What is the smallest feature in micrometers (μm) that can be resolved with the microscope when specimens are observed with light of wavelength 477 nm? (State answer in micrometers with 2 digits right of decimal.)

QUESTION 12

A student used a diffraction grating with 723 lines/mm to determine an unknown wavelength of light. The light passed through the grating, and the pattern was observed on a paper placed 90.0 cm past the grating. The distance from the center bright spot to the second bright spot from the center was measured to be 73.6 cm. What was the wavelength of light in nanometers (nm)? (State answer in nanometers as a whole number with no digits right of decimal.)

Answer 1