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Optics
Page 9
Questions (4,275)
on a lake without any waves, how far from the shore is a sailboat when the top of 10 m mast disappears from view of a person
3 answers
asked by
parker
3,285 views
What is the wavelength of an X-ray photon with energy 9.0 keV (9000 eV)? (1 eV = 1.60 × 10−19 joule.)
Express your answer to
4 answers
asked by
robotboy
2,034 views
A single vertical slit of width 24000 nm is located 2.10 m from a screen. The intensity pattern below is observed. The distances
6 answers
asked by
Kid
2,031 views
"In fluorescence microscopy, the wavelength of the emitted light is __________that of the exciting radiation."
Longer than
4 answers
asked by
Ann
1,634 views
What is Reflection?
4 answers
asked by
Lonwabo
1,213 views
Jennifer places a flat mirror on the ground and backs up until she sees the top of the building in the mirror. At that point,
4 answers
asked by
Kemberley
752 views
The speed of light is 3 „e 108 m/s (300,000,000 m/s). Red light has a wavelength of 7 „e 10-7 m (0.0000007 m). What is its
4 answers
asked by
wendell
4,115 views
How a substance appears due to the wavelength of the light reflected off of its surface
3 answers
asked by
Anonymous
688 views
cahaya dengan panjang gelombang600 nm jatuh pada sebuah logam yang mempunyai fungsi kerja 2 eV. panjang gelombang ambangnya
4 answers
asked by
fetry
2,372 views
can a parallel rays form an angle explain
4 answers
asked by
Elina
1,086 views
Light that passes through a pair of eyeglasses is-
a.transmitted b.absorbed c.reflected d.refracted D?
4 answers
asked by
Rezu
1,702 views
A certain person's eye measures 24.0 mm from the pupil to retina.
(a) If we treat the eye's lens as a thin lens, what is its
4 answers
asked by
crystal
1,646 views
unit 2 lesson 10. three views of an object. pls help
7 answers
asked by
Anonymous
1,446 views
When white light strikes this object, the light is completely absorbed, with none of it transmitted or reflected. Which type of
4 answers
asked by
Anonymous ;)
248 views
What is the general trend of the angle of refraction at a given angle of incidence, as the refractive index increases?
6 answers
asked by
T
1,284 views
A convex mirror forms an image of half the size of the object. When it is moved 15cm away from the object the size of the image
4 answers
asked by
Aashutosh
1,372 views
Two 1-km fibers are spliced together. Each fiber has a 5-dB loss, and the splice adds 1 dB of loss. If the power entering is 2 m
4 answers
asked by
bree
2,464 views
True or False? Resolution decreases as the amount of light coming in on the object increases?
5 answers
asked by
Jerome
600 views
When you use a spectrophotometer, should you set the wavelength of light to be the same color as that of the solution, or would
4 answers
asked by
Arnold
4,951 views
Light that is polarized along the vertical direction is incident on a sheet of polarizing material. Only 94% of the intensity of
7 answers
asked by
Delli
6,063 views
A ray of light has an angle of incidence of 30.4� degrees
on a block of quartz and an angle of refraction of 20.7� degrees. What
5 answers
asked by
Maria
4,110 views
E=hc/lambda
How would I rearrange this to be able to solve for the other variables (c or lambda)??????? Please and thank you.
4 answers
asked by
Corin
1,920 views
At noon on a clear day, sunlight reaches the earth\'s surface at Madison, Wisconsin, with an average power of approximately 4.00
4 answers
asked by
Anonymous
5,059 views
If f is the focal length of a convex lens and an object is placed at a distance p from the lens, then its image will be at a
5 answers
asked by
Sam
11,367 views
A beam of light is emitted in a pool of water from a depth of 64.0 cm. How far away, relative to the spot directly above it,
4 answers
asked by
anonymous
3,249 views
What minimum frequency of light is required to ionize potassium?The energy required to ionize potassium is 419kJ/mol?
6 answers
asked by
Ashley
4,881 views
What is the wavelength of light associated with the radiation of 7.26 x 10-19 J/photon? (h = 6.63 x 10-34 J • s)
7 answers
asked by
trevor
4,124 views
A 32 W (1 W = 1 J/s) lamp generates violet light at a wavelength of 420 nm. How many photons of this light will the lamp
5 answers
asked by
Anon
4,129 views
1. A light ray strikes a mirror at an angle of 42° from the surface of the mirror. What angle does the reflected ray make with
5 answers
asked by
need help
5,137 views
Two converging lenses are separated by 23.40 cm. The focal length of each lens is 12.20 cm. An object is placed 35.00 cm to the
4 answers
asked by
DCM
4,302 views
A flat mirror that is 0.85m tall is attached to a wall so that its upper edge is 1.7m above the floor. Use the law of reflection
4 answers
asked by
Ashley
2,944 views
A concave, spherical mirror and a thin, converging lens are both measured in air (n=1.0) to have the same focal length, ff. Both
4 answers
asked by
Urgent Help Needed Please!!!
2,542 views
A spherical mirror is polished on both sides. When the concave side is used as a mirror, the magnification is +3.0. What is the
5 answers
asked by
Elizabeth
1,126 views
Light with a wavelength of 405 nm fell on a strontium surface, and electrons were ejected. If the speed of an ejected electron
4 answers
asked by
Emily
1,867 views
compared to the period of a wave of red light the period of green light is...
A)less B)greater C)the same D)none of the above
4 answers
asked by
help!!!
2,549 views
In searching the bottom of a
pool at night, a watchman shines a narrow beam of light from his flashlight, 1.3 m above the water
4 answers
asked by
Steve
5,078 views
For 606 nm visible light, calculate its frequency (𝜈, Hz), wavenumber (𝜈˜, cm−1), and photon energy (J).
4 answers
asked by
destiny
1,040 views
A jewel thief decides to hide a stolen diamond by placing it at the bottom of a crystal-clear fountain. He places a circular
4 answers
asked by
vanessa
2,124 views
The minimum frequency for the photoelectric effect of a zinc plate is 9.7 × 1014 Hz. What will be the kinetic energy of an
4 answers
asked by
Pat
2,330 views
4. The human eye is a complex sensing device for visible light. The optic nerve needs a minimum of 2.0 x 10-17 J of energy to
4 answers
asked by
Sutheshan
2,452 views
A light beam strikes a piece of glass at a 60.00° incident angle. The beam contains two wavelengths, 450.0 nm and 700.1 nm, for
5 answers
asked by
John
4,305 views
A student is reading a lecture written on a blackboard. The lenses in her eyes have a refractive power of 59.82 diopters, and
4 answers
asked by
please help
2,432 views
Okay last question I need help with
Monochromatic light of 605 nm falls on a single slit, which is located 85 cm from a screen.
5 answers
asked by
Me and I
2,902 views
A near-sighted person might correct his vision by wearing diverging lenses with focal length f = 60 cm. When wearing his
4 answers
asked by
k
2,539 views
A statue 10 feet high is standing on a base 13 feet high. If an observer's eye is 5 feet above the ground, how far should he
6 answers
asked by
Alexa
2,463 views
A laser beam passes from air into a 25% glucose solution at an incident angle of 37 ∘ . In what direction does light travel in
4 answers
asked by
james
2,354 views
A microscope is focused on a mark on a table. When the mark is calculated by a glass plate of 3.00cm thick,the microscope has to
5 answers
asked by
Naomi
2,088 views
Which of the following best describes the image from a thin convex lens that forms whenever the object is at a distance more
4 answers
asked by
Laura
4,699 views
When your eye is submerged in water, is the bending of light rays from water to your eyes more, less, or the same as in air?
4 answers
asked by
Kaity
1,283 views
Galileo's first telescope used a convex objective lens with a focal length f = 1.65 m and a concave eyepiece. When this
3 answers
asked by
Samantha
1,194 views
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