Using a double-slit with a d = 300 nm and light of a wavelength of 400 nm, what would you see on a distant screen?
A. the intensity is maximum at the center and gradually decreases to either side
B. the intensity is minimal at the center and gradually increases to either side
C. the intensity is maximum in a single narrow line at the center
D. the intensity is minimal in a single narrow line at the center
A. the intensity is maximum at the center and gradually decreases to either side
You might also like to view...
The model we have constructed in this chapter neglects feedback effects that might accelerate or brake the warming. Scientists now predict that the Arctic Ocean will be ice-free in the summer by as early as 2020 (due to increased temperatures in the Arctic). Less ice will mean that the Arctic will reflect less visible light back into space. Will this accelerate or brake the warming compared to the predictions of the model in the text?
A. Accelerate B. Brake C. No change
Which of the following supports the idea that the Martian crust is not divided into moving plates like those on Earth? I. the size of Olympus Mons II. the lack of folded mountain chains III. the lack of rift valleys outlining entire plates IV. the presence of dry river beds and sea floors
a. I & II b. II & III c. II, III & IV d. I, II, & III e. I, II, III, & IV
Which of the following processes would be the most likely process for making lowcost continuous-fiber composite fenders for a truck?
(a) Resin transfer molding (b) Vacuum bagging (c) Pultrusion (d) Filament winding
The amount of carbon dioxide in Earth's atmosphere has been increasing over the last 50 years because of
a. global warming. b. the growth of the ozone hole. c. the burning of fossil fuels. d. increased energy output from the Sun. e. increased magnetic activity in the Sun.