Physics Ultraviolet light: What kind of relationship exists between emitted light and time

Certain crystals fluoresce when exposed to a short burst of ultravioletlight. The amount of light emitted by the crystals is both time and temperature dependent. The emitted light is maximum at the time of excitation, the output then decaying with time. Such materials can be used to measure temperature. Given are some relative fluorescent light outputs as a function of time for 4 different temperatures. You are to, first of all, in a proper fashion, graph this data (relative output vs. time) for each temperature separately. What kind of relationship exists between the emitted light and time? Find the time constant for each temperature. Then, make a graph of the time constant as a function of temperature. What kind of relationship results?

The problem below is similar to the problems in chapters 25 & 26 in the Cutnell and Johnson College Physics book so it should be solved in a similar fashion. This is physics-II without calculus:
An astronomer is making an observation of a new discovered galactic object. Part of this observation is the analyisis of the light

1. Energy is ____ when an n = 4 to n = 2 transition occurs when an electron adds to the H+ ion and ends up in the n = 3 shell.
a) destroyed, created
b) emitted, created
c) absorbed, emitted
d) emitted, absorbed
e) emitted, emitted
2. Calculate delta(E) if 1 = 1.40 kJ and w = -658 J.
a) -657 kJ
b) 0.742 kJ
c) 1.4

Calculate the classical frequency for the lightemitted by an atom. To do so, note that the frequency of revolution is v/2pir, where r is the Bohr radius. Show that as n approches infinity in
f= 2pi2mk2e4/h3 times 2n-1/(n-a)2 n2
the expression varies as 1/n3 and reduces to the classical frequency.

Ultravioletlight is incident normally on the surface of a certain substance. The binding energy of the electrons in this substance is 3.44 eV. The incident light has an intensity of 0.055 W/m2. The electrons are photoelectrically emitted with a maximum speed of 4.2 X 105 m/s. How many electrons are emitted from a square cen

The red light associated with the Aurora Borealis is emitted by excited oxygen atoms at 6.60 X 10-7 m. What is the frequency of the light? Using scientific notation, (Round your answer to two decimal places) and write the exponent part as follows: x 10 to the _ power.

For a yellow sodium light emission, with a frequency of 5.09 x 1011 Hz
a) What is the wavelength in nm?
b) Calculate the energy of the light.
(c = 3.00 x 108 m/s, h = 6.63 x 10-34 j-s, Rh = 2.18 x 10-18J)

1. Electrons accelerated by a potential difference of 12.98 V pass through a gas of hydrogen atoms at room temperature. Calculate the wavelength of lightemitted with the longest possible wavelength.
2. Calculate the wavelength of lightemitted with the shortest possible wavelength.

Plant leaves appear green because they ________ light spectrum.
A) scatter all colors except the green wavelength of the visible
B) scatter the green wavelength of the visible
C) absorb the green wavelength of the visible
D) scatter the green wavelength of the ultraviolet
E) absorb the green wavelength of the ultraviolet

Two small bulbs are held one above the other. The top bulb is red; the bottom bulb, green. A small ball is held between the bulbs and a white screen.
** Please see the attached file **
You don't need to sketch it like it says in the problem, just explain.