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Optics
Page 8
Questions (4,165)
Which type of material absorbs light?
opaque transparent translucent
1 answer
asked by
mir
79 views
Which type of material scatters light as it passes through?
Opaque Transparent Translucent
1 answer
asked by
mir
79 views
Which of the following statements about light is true?(1 point)
Responses A. The speed of light in a vacuum depends on the
1 answer
asked by
Unknown
187 views
How do the frequencies and the speeds of yellow light and blue light compare?(1 point)
Responses A. The frequency of yellow light
4 answers
asked by
Unknown
404 views
What is it called when light shining on certain substances causes an electric current to flow?
infrared radiation the
1 answer
asked by
mir
122 views
Visible light can be separated into various colors to form a(n) _____.
thermogram MRI spectrum X-ray picture
1 answer
asked by
mir
63 views
Which color of visible light has the longest wavelength?
green violet yellow red
1 answer
asked by
mir
88 views
If a 60° glass prism has a refractive index of 1•5 what is it's angle of minimum deviation
2 answers
asked by
Asher
54 views
An object 5cm high is placed at a distance of 12cm from a convex lens of focal length 8cm calculate the position and
2 answers
asked by
Asher
54 views
In your own words, how does total internal reflection make fiber optic messages possible?
2 answers
asked anonymously
42 views
What happens to the speed of the light as it travels from the air, through the glass, and then through the water?
A. The speed of
1 answer
asked by
Jsmzjsmj
70 views
Which is one difference between visible and non-visible light?(1 point)
Responses Visible light can be seen by the unaided human
2 answers
asked by
wiggle
392 views
1)Which of the following objects can set fire to a piece of paper in the presence of sunlight?
A)doulble concave lens B)convex
4 answers
asked by
Jon
2,185 views
The image produced by a concave mirror is located 27 cm in front of the mirror. The focal length of the mirror is 13 cm. How far
3 answers
asked by
linds
1,045 views
3. When an object is located very far away from a convex mirror, the image of the object is 18 cm behind the mirror. Using a ray
4 answers
asked by
Tom
1,974 views
A lightbulb is installed. With probability 1/3, it burns out immediately when it is first installed. With probability 2/3, it
4 answers
asked by
Sam
3,455 views
When an object is placed 55.0cm from a certain converging lens, it forms a real image. When the object is moved to 45.0cm from
3 answers
asked by
Laila
1,043 views
Which is one difference between visible and non-visible light
4 answers
asked by
Ben
468 views
A model shows rays of sunlight moving straight from the sun perpendicular to the surface of the earth. What are these rays
4 answers
asked by
Anonymous
869 views
The famous Chinese magician Foo Ling Yu performs a classic magic trick using a concave mirror with a focal length of 1.6 m. Foo
3 answers
asked by
Danny
2,382 views
Please help me!!!!
A swimmer looks up from underwater in a pool and sees a tree. The light traveling in the air makes an ancle of
5 answers
asked by
Dawn
563 views
The photogenic work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light.
4 answers
asked by
Kat
2,398 views
rays of sunlight moving straight from the sun perpendicular to the surface of the earth is called --------------------
1 answer
asked by
tammy
106 views
1) In 1905 Einstein interpreted the “photoelectric effect” of light, a phenomenon that cannot be explained by the wave
2 answers
asked by
Sara
594 views
Find the radius of a star image formed on the retina of the eye if the aperture (pupil) diameter at night is 0.70 cm and the
1 answer
asked by
Alinkashia
912 views
A person sits in a chair 3m from a wall on which hangs a plane mirror.Three meters directly behind him stands a woman 1.6m
1 answer
asked by
Grace Didier
830 views
Amato shows a rays of sunlight moving straight from the sun perpendicular to the surface of the earth what are the rays called?
3 answers
asked by
Yo momma
273 views
hree light beams encounter a medium. One light ray is reflected, while the other two are absorbed. How can the medium be
3 answers
asked by
jjk
1,089 views
A certain metal surface emits electrons when light is shone on it. (a)How can the number of electrons per second be increased?
4 answers
asked by
Reagan
1,309 views
Late one night on a highway, a car speeds by you and fades into the distance. Under these conditions the pupils of your eyes
4 answers
asked by
Ashley
3,514 views
The illumination of an object by a light source is directly proportional to the strength of the source and inversely
4 answers
asked by
J
1,892 views
Given a Helium-Neon laser-based fiber optic Doppler probe at an angle of 60¡C with a blood vessel that registers a frequency
2 answers
asked by
CS
525 views
Consider a room ten units long in the x, y, and z directions. Speci cally, the walls of the room are the four planes, x = 0, x =
3 answers
asked by
Sarah
578 views
Sam is sitting in her fishing boat watching a trout swim below the surface. She guesses the apparent depth of the trout at 2.0m.
6 answers
asked by
Sarah N H
531 views
What is the approximate magnification of a compound microscope with objective and eyepiece focal lengths of 0.3 cm and 3.6 cm,
4 answers
asked by
katherine
1,581 views
If light travels 10,000 km in 3.3 x 10-2 sec, how long will it take light to travel one meter.
4 answers
asked by
Samantha
1,455 views
A wavelength of 625 nm is used in a Young's double-slit experiment. The separation between the slits is d = 1.3 10-5 m. The
4 answers
asked by
Mary
1,253 views
Question 1
Calculate the wavelength (in nm) of the red light emitted by a neon sign with a frequency of 4.74 x 1014 Hz. A) 704 nm
4 answers
asked by
Anonymous
3,974 views
The widths of the lines produced by monochromatic light falling on a diffraction grating can be reduced by:?
The correct answer
4 answers
asked by
S
835 views
An object 29.0 mm high is 27.0 cm away from a concave spherical mirror with a radius of curvature of 28.0 cm. How do i get these
2 answers
asked by
steve
528 views
A beam of light passes from air to ethanol, with index of refraction of 1.36. If the angle of incidence ( 1) is 30.0 degrees,
4 answers
asked by
sophie
1,647 views
The threshold wavelength of zinc is 390 nm.
1) Find the frequency of zinc 2) What is the work function in eVerything of zinc? 3)
2 answers
asked by
Anonymous
813 views
How does light typically travel?
2. Traveling through glass (or water) is not good enough to prevent light from escaping. What
2 answers
asked anonymously
149 views
I am to fill in the blanks without a word bank, my answers are in brackets.
1. A ____ diffraction pattern is unique because it
4 answers
asked by
Liz
2,683 views
What happens to sunlight when it strikes a dark (black) surface? How is wavelength affected? Why are the Sun's rays the most
1 answer
asked by
Bob
447 views
Suppose you were stranded on a desert island with only a convex lens and a mirror. Describe how you could use each of these
3 answers
asked by
Desert island 🏝
627 views
Why are spectrum lines useful and classify stars
1 answer
asked by
Anonymous
83 views
a ray of light traveling from the air into crown glass strikes the surface at an angle of 30 degrees. what will the angle of
3 answers
asked by
sunny
1,896 views
A 35-mm camera equipped with a 40-mm focal length lens is used to photograph a tree 17 m tall. If a 32-mm high image of the tree
3 answers
asked by
Need Help Urgent
4,132 views
On a calm, bright day, you're scuba diving in a deep lake (n = 1.33), 5.40 m from your sailboat. When you are 3.10 m below the
4 answers
asked by
RUdi
1,454 views
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