Monochromatic light strikes a metal surface and electrons are ejected from the metal. If the intensity of the light is increased, what will happen to the ejection rate and maximum energy of the electrons?

A) same ejection rate; greater maximum energy
B) same ejection rate; same maximum energy
C) greater ejection rate; same maximum energy
D) greater ejection rate; greater maximum energy

C

Physics & Space Science

You might also like to view...

What is not a main source of evidence for the existence of dark matter?

A) massive blue stars B) rotation curves of disk galaxies C) stellar motions in elliptical galaxies D) velocities and positions of galaxies in clusters of galaxies E) gravitational lensing by clusters of galaxies

View
Physics & Space Science

An AC generator with peak voltage 100 volts is placed across a 10-? resistor. What is the average power dissipated?

a. 100 W b. 150 W c. 500 W d. 1000 W e. 2000 W

View
Physics & Space Science

Which of the following statements is true about the Maxwell speed distribution?

a. A higher proportion of molecules have the root-mean-square speed than the average speed. b. A molecule of gas moving at the most probable speed has more kinetic energy than does the same molecule moving at the average speed. c. The mean speed and root-mean-square speed are different names for the same value. d. The distribution of molecules from largest to smallest goes 1) most probable speed, 2) mean speed, 3) root-mean-square speed.

View
Physics & Space Science

A monster turnip (assumed spherical) weighing in at 0.45 kg is dropped into a cauldron of water boiling at atmospheric pressure. If the initial temperature of the turnip is 17°C, how long does it take to reach 92°C at the center? Assume that


GIVEN

FIND
Time needed to reach 92°C at the center
ASSUMPTIONS

SKETCH

View
Physics & Space Science