A single glass lens has a refractive index of 1.5 and radii of
curvature R1=5cm and...
A single glass lens has a refractive index of 1.5 and radii of
curvature R1=5cm and R2=-5cm. Write down the analytical and
numerical system matricies for the lens.
Comparing these matricies, what is the focal length of the
lens?
A 3.0 cm thick lens with a refractive index of 1,650, has radii
of curvature r1 = + 5.0 cm and r2 = -15.0cm. If you considered it
as a thick lens, what would be its focal length and what would its
power? Find the positions of the main points and the focal points.
Find the front focal length and the rear focal length. If the
second surface is silver, what is the power? And the focal length
of the...
A thin plastic lens with index of refraction n = 1.66
has radii of curvature given by R1 =
−11.5 cm and R2 = 50.0 cm
(a)
Determine the focal length in cm of the lens.
cm
(b)
Determine whether the lens is converging or diverging.
converging
diverging
Determine the image distances in cm for object distances of
infinity, 7.00 cm, and 70.0 cm.
(c)
infinity
cm
(d)
7.00 cm
cm
(e)
70.0 cm
cm
Make the curvature radius 0.6 , the refractive index 1.5, and the
diameter 0.6 . Place the lamp so that the source of light is
120 from the middle of the lens (use the ruler).
The focal length of the lens is ____________, and the focal plane
is ___________ from the lens.
120 cm / 120 cm
60 cm / 120 cm
60 cm / 60 cm
30 cm / 120 cm
60 cm / 180 cm
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Consider a beam of light passing from air into glass (refractive
index 1.5) at an angle of 30 degrees from vertical. Calculate
- The angle of the reflected light
- The angle of the refracted light
- The intensity of the reflected light
- The intensity of the refracted light
A single bi-convex lens (a lens with two convex
surfaces) made of glass (index of refraction n = 1.55) has surfaces
with radii of curvature r1 = 27.0 cm and r2 =
-27.0 cm. a)What is the focal length of the lens in air?
b)If an object is placed at p = 39.7 cm from the lens, where is the
image? (Use plus sign for a real image, and minus sign for a
virtual image.)
c)If the object has a...
PART A
A lens with two convex surfaces, both with radii of curvature of
0.25 meters, is used to focus light. If the lens is made of crown
glass, it would have an index of refraction for red (656 nm) light
of 1.509 and for blue light (486 nm) of 1.517. What happens when it
is used to make an image of a distant source of white light? Pick
those that apply (THERE ARE 3 ANSWERS)
The red light falls...
A lens is constructed of a plastic whose index of refraction is
1.5. The lens is concave on the left side with a radius of 50cm and
convex on the right side, with a radius of 25cm. A) Draw a diagram
showing the lens. B) What will be the focal length of this lens? C)
Is the lens converging or diverging? D) We now place an object 67cm
to the left of the lens, make a new diagram showing the...
4. Liquid A has a refractive index of 1.415 and liquid B has a
refractive index of 1.524. A solution
is prepared by mixing liquid A with liquid B. If the refractive
index of the resulting solution is
1.457, does the solution have more of liquid A or more of liquid
B? What is the % Liquid A in
the mixture?
A plate of glass with parallel faces having a refractive index of 1.52 is resting on the surface of water in a tank. A ray of light coming from above in air makes an angle of incidence 36.0 with the normal to the top surface of the glass. What angle does the ray refracted into the water make with the normal to the surface? Use 1.33 for the index of refraction of water.
A thin uniform film of refractive index 1.750 is placed on a
sheet of glass with a refractive index 1.50. At room temperature (
24.0o C), this film is just thick enough for light with
a wavelength 582.9 nm reflected off the top of the film to be
canceled by light reflected from the top of the glass. After the
glass is placed in an oven and slowly heated to 164o C,
you find that the film cancels reflected light...