Electrons with a speed of 2.1 × 106 m/s are directed towards a 1.0-?m wide slit. An electron detector is placed 1.0 m behind the slit
How wide is the central maximum of the electron diffraction pattern on the detector? (h = 6.626 × 10-34 J ? s, melectron = 9.11 × 10-31 kg)
A) 690 ?m
B) 350 ?m
C) 1,000 ?m
D) 1,400 ?m
A
You might also like to view...
A substance that heats up relatively slowly has a
A) high specific heat capacity. B) low specific heat capacity. C) either of these D) neither of these
What is the simplest way we might detect life on an extrasolar planet?
A) listen for radio signals coming from an advanced civilization on the planet B) wait for aliens from the planet to visit us C) analyze the spectrum of reflected light from the planet D) send an interstellar probe to the planetary system
If, in a parallel universe, ? has the value 3.14149, express ? in that universe to four significant figures
A) 3.141 B) 3.142 C) 3.1415 D) 3.1414
The mass of the deuteron