A phototube has a stopping potential of 2.80 V when the cathode is illuminated with bichromatic light of 400 nm and 600 nm wavelengths. The maximum speed of the emitted photoelectrons, in SI units, is closest to:
A) 9.9 × 105
B) 9.3 × 105
C) 1.1 × 106
D) 1.2 × 106
E) 1.3 × 106
A
You might also like to view...
Which would burn your skin the most?
A) 100 g of water at 100°C B) 100 g of steam at 100°C C) both equal
Ten kilograms of water at 0°C is mixed with 10 kg of water at 100°C. What is the change in entropy (in cal/K) of the system?
a. 1000 b. 480 c. ?720 d. 240 e. ?168
If the following generic atom were to undergo ionization, what would be the charge of the most likely product?
A) +2 B) -2 C) -6 D) +6 E) would probably not ionize
The eccentricity of a planet's orbit describes
a. westward motion in the night sky when observed on successive nights. b. the deviation in shape when compared to a circle. c. its tilt with respect to the ecliptic plane. d. the tilt of the planet's rotational axis with respect to the ecliptic.