A light source simultaneously emits light of two wavelengths, 480 nm and 560 nm, respectively. The source is used in a double-slit interference experiment where the slit spacing is a 0.040 mm, and the distance between double slits and the screen is 1.6 m. What is the separation between the m = 3 bright fringes of the two wavelengths as they appear on the screen? (1 nm = 10-9 m)
a. 0.96 cm
c. 0.64 cm
b. 0.48 cm
d. 0.16 cm
Question 2
A Young's double-slit apparatus is set up. The source wavelength is 430 nm, and the double-slit spacing is 0.040 mm. At what distance from the double slits should the screen be placed if the spacing between alternating bright fringes is to be 2.6 cm? (1 nm = 10-9 m)
a. 2.9 m
c. 2.2 m
b. 2.4 m
d. 1.6 m
How noncyclic electron flow during the light reactions generates ATP and NADPH.
Head-Tail Source NGC 1265
This 1900 photograph of steel factories at night in Duquesne, near Pittsburgh, was tinted by hand. S
Using a black light to spot leaks after adding dye to the oil.
Summary view of the light reactions as they occur in the thylakoid
Light-independent reactions in C4 plants