How thick (minimum) should the air layer be between two flat
glass surfaces if the glass...
How thick (minimum) should the air layer be between two flat
glass surfaces if the glass is to appear bright when 510 nm light
is incident normally?
nm
What if the glass is to appear dark?
nm
A 5.3-cm-thick layer of oil (n=1.46) is sandwiched between a
1.1-cm-thick sheet of glass and a 2.0-cm-thick sheet of polystyrene
plastic (n=1.59). How long (in ns) does it take light incident
perpendicular to the glass to pass through this 8.4-cm-thick
sandwich?
A 2.0-cm-wide diffraction grating has 1000 slits. It is
illuminated by light of wavelength 570 nm . What are the angles of
the first two diffraction orders?
A thermopane window consists of two pieces of glass each 0.1"
thick separated by a layer of dry,
stagnant air .4" thick.
• Find the resistance of a 4 ft × 3 ft thermopane window.
• Suppose the window is made by fastening an aluminum border .1"
thick all around the edge.
Find the total resistance for this configuration.
• As an alternative to the aluminum, we might use a border of .75"
thick white pine. Find the total
resistance...
Light strikes a
flat piece of uniformly thick glass at an incident angle of
60?.
If the index of refractino of the glass is 1.5, and it has a width
of 10 cm,
A) What is the
angle of refractino in the glass?
B) What angle
will the light leave the glass at on the other side?
A sheet of glass is coated with a 501-nm-thick layer of oil
(n = 1.42).
1.For what visible wavelengths of light do the
reflected waves interfere constructively?
2.For what visible wavelengths of light do the
reflected waves interfere destructively?
3.What is the color of reflected light?
Red
Yellow
Orange
Green-blue
4.What is the color of the most part of transmitted light?
Yellowish green
Blue
Orange
Red
A sheet of glass (n=1.50) is coated with a 500nm -thick
layer of oil (n=1.42).
Part A
For what visible wavelengths of light do the reflected
waves interfere constructively? The range of wavelength of visible
light is from 380 nm to 750 nm.
Enter your answers numerically separated by commas.
Part B
For what visible wavelengths of light do the reflected
waves interfere destructively?
Enter your answers numerically separated by commas.
A sheet of glass (n=1.50) is coated with a 500 nm -thick layer
of oil (n=1.42).
A. For what visible wavelengths of light do the reflected waves
interfere constructively? The range of wavelength of visible light
is from 380 nm to 750 nm.
B. For what visible wavelengths of light do the reflected waves
interfere destructively?
C. What is the color of reflected light?
D. What is the color of transmitted light?
A clay layer in field is 3-m thick and is sandwiched between two
sand layers (drained from top and bottom). The saturated stratum of
clay is under a surcharge loading and underwent 90% primary
consolidation in 75 days. The time required in minutes for a 30 mm
thick undisturbed clay sample obtained from the field to undergo
90% consolidation in laboratory is most nearly equal to
Select one:
a. 28
b. 67.5
c. 100
d. 10
Consider the two-dimensional laminar boundary layer flow of air
over a wide 15 cm long flat plate whose surface temperature varies
linearly from 20°C at the leading edge to 40°C at the trailing
edge. This plate is placed in an airstream with a velocity of 2 m/s
and a temperature of 10°C. Numerically determine how the surface
heat flux varies along the plate.
Explain the results obtained with proper reasoning. Support your
results with scaling analysis wherever possible.I need c++...
Two copper plates 0.50cm thick have a 0.10mm sheet of glass
sandwiched between them. One copper plate is kept in contact with
flowing ice water and the other is in contact with stream. What are
the temperatures of the two copper-glass interfaces, and what is
the power transferred through a 10cm by 10cm area? kcopper=385 K/mC
and kglass=0.8 K/mC
The answers given are: 9C, 91 C, and 6.6E3 W. I am just trying
to learn the process of solving problems...
The soil profile at a site consists of a clay layer 10 m thick,
sandwich between two sand layers. The top sand layer has a density
of 1.9 Mg/m3 and is 5 m thick. Below this layer is a 10 m thick
clay layer with a saturated density of 1.8 Mg/m3 and a saturated
water content 42%. The deeper sand layer has a saturated density of
1.9 Mg/m3 and extend to the depth investigated at the site. The
water table...