College Physics › Quantum and Nuclear Physics
A monochromatic light source is incident on a neutral density filter which decreases the light source's intensity by a factor of 3 but does not change its color. What happens to the energy of a photon in the less intense beam?
Radiocarbon dating is a method that allows scientists to estimate the age of organisms after they have died. A fairly constant amount of radioactive remains in the animal while alive, but once it dies the
degrades over time into
. By measuring the relative amount of these two in a dead organism compared to a living one, along with knowing that the half-life of
is
years, it can be determined how long ago the organism died.
If a scientist finds that a fossil contains amount of the
normally found in the atmosphere at that time, approximately how old is this fossil?
A car with mass is heading toward a wall at a speed
. What is the approximate de Broglie wavelength of the car?
A monochromatic light source is incident on a neutral density filter which decreases the light source's intensity by a factor of 3 but does not change its color. What happens to the energy of a photon in the less intense beam?
Radiocarbon dating is a method that allows scientists to estimate the age of organisms after they have died. A fairly constant amount of radioactive remains in the animal while alive, but once it dies the
degrades over time into
. By measuring the relative amount of these two in a dead organism compared to a living one, along with knowing that the half-life of
is
years, it can be determined how long ago the organism died.
If a scientist finds that a fossil contains amount of the
normally found in the atmosphere at that time, approximately how old is this fossil?
A monochromatic light source is incident on a neutral density filter which decreases the light source's intensity by a factor of 3 but does not change its color. What happens to the energy of a photon in the less intense beam?
A car with mass is heading toward a wall at a speed
. What is the approximate de Broglie wavelength of the car?
Radiocarbon dating is a method that allows scientists to estimate the age of organisms after they have died. A fairly constant amount of radioactive remains in the animal while alive, but once it dies the
degrades over time into
. By measuring the relative amount of these two in a dead organism compared to a living one, along with knowing that the half-life of
is
years, it can be determined how long ago the organism died.
If a scientist finds that a fossil contains amount of the
normally found in the atmosphere at that time, approximately how old is this fossil?
A car with mass is heading toward a wall at a speed
. What is the approximate de Broglie wavelength of the car?
A laser outputs light of a single color with photon energy . A nonlinear crystal, which halves the wavelength of light, is placed in the path of the laser beam. What is the energy of the photons exiting the crystal?