Consider the following seven types of electromagentic waves:
visible light, microwaves, radio waves, gamma rays, infrared, uv
and x-rays
a) place the waves in order from shortest wavelength to
longest
b)place the waves in order fromm lowest frequency to highest
c) which waves travels with the highest velocity in a vacuum
In visible light, which color has the longest
wavelength?'
Are Microwave, Visible Light, Gamma rays in order of lowest to
highest energy?
are Radio broadcast, cell phone and GPS examples of technologies
that uses radio waves
(1) Radio waves and light are electromagnetic waves and
transverse waves that can operate in a medium or in space.
What is an Aether or ether?
Upon which medium does sound travel the fastest?
(2) Some scientists think that ether does exist but does exist
in another dimension that we cannot see. Can you elaborate on
this?
A. What are electromagnetic waves? What is the difference
between visible light and other electromagnetic waves that we
cannot see? Name four electromagnetic waves that we are not able to
see.
B- What is the remnant energy of the Big Bang, called Cosmic
Microwave Background waves (CMB)? How can we say that the universe
is expanding by comparing it to the electromagnetic waves at the
time of the Big Bang?
C- What is the wavelength of red light and blue...
Light including the infrared, visible, and ultraviolet hits a
bunch of hydrogen atoms at nearly 0K. The light is detected after
hitting the atoms.
Describe the detected light.
Considering only transitions that allow the electron to remain
bound, determine the longest possible wavelength absorbed.
Considering only transitions that allow the electron to remain
bound, determine the shortest possible wavelength that could be
absorbed.
Determine if either of the photons in (b) or (c) are in the
visible range.
3. Radio telescopes are often much larger in diameter than
optical (i.e. visible light) telescopes; some of the larger ones
have diameters of 100 meters, while the largest optical telescopes
are only about 10 meters in diameter. Assume that radio telescopes
observe at wavelengths around 1 cm, which is about 20,000 times
longer than the wavelengths of visible light.
a) Explain why these large radio telescopes have much greater
light-gathering power than large optical telescopes. Explain what
quantities light-gathering power...
The primary difference between infrared and visible light is
that
infrared travels faster than visible light.
they have different amplitudes.
infrared does not have a magnetic field associated with its
electric field.
they have different wavelengths.
no materials currently known have the ability to reflect
infrared.
A molecular is injected into the right basilic vein. It is
visible on x-ray in the bile and is used to visualize the biliary
system for diagnostic study. Trace the molecule from injection to
its exit from the body.
For a light to be coherent light waves should have:
same color
different phases
same wavelength and phase
all wavelengths
Which phenomenon shows the wave nature of light?
reflection
refraction
diffraction
lenses
Bright fringes are a result of:
diffraction
constructive interference
destructive interference
stimulated...