What distinguishes laser light from lamp light in terms of wavelengths?
Anonymous Quiz
11%
Laser light has many wavelengths
34%
Lamp light is monochromatic
55%
Laser light has a single wavelength
Which characteristic is NOT associated with lamp light?
Anonymous Quiz
11%
Many wavelengths
12%
Multidirectional
8%
Incoherent
69%
Monochromatic
what is a common feature of lamp light?
Anonymous Quiz
8%
Single wavelength
10%
Coherent
78%
Multidirectional
4%
Polarized
How is the coherence of lamp light described?
Anonymous Quiz
17%
Coherent
69%
Incoherent
8%
Monochromatic
6%
Collimated
What is the purpose of collimating laser light?*
Anonymous Quiz
7%
To make it multidirectional
19%
To randomize its direction
74%
To concentrate it into a defined spot
What happens to an electron when it absorbs an amount of energy?
Anonymous Quiz
8%
It stays in its lowest energy level (ground state)
86%
It moves to a higher orbital level (excited state)
5%
It releases a photon
2%
It stops moving
What is the process called when an electron releases an identical photon and returns to the ground state?
Anonymous Quiz
8%
Absorption
8%
Excitation
83%
Spontaneous emission
2%
Ionization
What term describes an electron that has absorbed energy and moved to a higher energy level?
Anonymous Quiz
6%
Ground state
5%
Ionized state
85%
Excited state
5%
Neutral state
What must occur for an atom to be in an excited state?
Anonymous Quiz
16%
The electron releases energy
5%
The atom stops moving
67%
The electron absorbs energy
13%
The electron stays in the ground state
What is required for an electron to move from one energy orbit to another?
Anonymous Quiz
8%
The atom must be in the ground state
5%
The electron must lose mass
88%
An amount of energy equal to the energy difference between the two orbits
What occurs when an electron in an excited state releases an identical photon?
Anonymous Quiz
11%
It stays in the excited state
11%
It becomes a different element
77%
It returns to the ground state
The closer the electron is to the nucleus, the stronger its energy.
Anonymous Quiz
55%
True
45%
False
The further the electron is from the nucleus, the weaker its energy
Anonymous Quiz
34%
True
66%
False
What is the process called when a photon released from an excited atom stimulates another similarly excited atom to release an identical photon?
Anonymous Quiz
23%
Spontaneous emission
5%
Reflection
6%
Absorption
66%
Stimulated emission
What happens to the emitted photons during stimulated emission?
Anonymous Quiz
16%
They are absorbed by the atom
5%
They disappear
79%
They promote the release of additional identical photons
What is the result of stimulated emissions when a large number of atoms are excited?
Anonymous Quiz
8%
Increased heat
14%
Reduced light intensity
2%
Decreased energy
77%
Light amplification
Repeating the process Spontaneous emission causes the occurrence of
Anonymous Quiz
32%
Light amplification
7%
Decreased energy
13%
The atom stops moving
48%
Stimulated emission