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Optics
Page 9
Questions (4,169)
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
Which statement explains why you perceive light when you rub your eyelids?(1 point)
Responses
4 answers
asked by
collin
107 views
The equilateral glass prism shown has an index of refraction of 1.56. The prism is surrounded by air. A ray of light is incident
1 answer
asked by
rudi
920 views
A letter R on a piece of paper is observed under a microscope. The image observed is vertically inverted and laterally inverted.
3 answers
asked by
angie
584 views
A helium-neon laser ( λ=633nm) illuminates a single slit and is observed on a screen 1.50m behind the slit. The distance
4 answers
asked by
Roberta
1,875 views
Two parallel slits are illuminated by light composed of two wavelengths, one of which is 645 nm. On a viewing screen, the light
4 answers
asked by
Mary
1,074 views
Why is visible light arranged into colors in order: red, orange, yellow, gree, blue, indigo, and violet?
4 answers
asked by
janna
1,859 views
2. The retina of a human eye can detect light when radiant energy incident on it is at least 4.0X10-17 J. For light of 600-nm
4 answers
asked by
sargam
7,338 views
Which of the following is visible to a person only because light from another source reflects off it?
- lightning - flashlight -
14 answers
asked by
John
3,625 views
The headlight on a car are set so the light beam drops 4 in for each 44 fr measured horizontally. If the headlight are mounted
5 answers
asked by
Roland
2,074 views
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
3,279 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
2,023 views
"In fluorescence microscopy, the wavelength of the emitted light is __________that of the exciting radiation."
Longer than
4 answers
asked by
Ann
1,623 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
744 views
Light of wavelength 630 nm passes through a grating and then onto a screen located several meters from the grating. The 1st
4 answers
asked by
BULturp
1,813 views
How a substance appears due to the wavelength of the light reflected off of its surface
3 answers
asked by
Anonymous
684 views
cahaya dengan panjang gelombang600 nm jatuh pada sebuah logam yang mempunyai fungsi kerja 2 eV. panjang gelombang ambangnya
4 answers
asked by
fetry
2,368 views
can a parallel rays form an angle explain
4 answers
asked by
Elina
1,084 views
Light that passes through a pair of eyeglasses is-
a.transmitted b.absorbed c.reflected d.refracted D?
4 answers
asked by
Rezu
1,692 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
1,642 views
unit 2 lesson 10. three views of an object. pls help
7 answers
asked by
Anonymous
1,442 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 ;)
238 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
1,276 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
1,367 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
2,456 views
True or False? Resolution decreases as the amount of light coming in on the object increases?
5 answers
asked by
Jerome
593 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
4,936 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
4,098 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
1,892 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
5,050 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
11,359 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
3,241 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
4,872 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
4,116 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
4,127 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
4,292 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
2,935 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!!!
2,532 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
1,119 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
1,858 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!!!
2,541 views
For 606 nm visible light, calculate its frequency (𝜈, Hz), wavenumber (𝜈˜, cm−1), and photon energy (J).
4 answers
asked by
destiny
1,030 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
2,320 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
2,445 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
4,292 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
2,422 views
A convex meniscus lens is made of glass with refractive index, n= 1.5. The radius of curvature of the concave surface is 46.2 cm
5 answers
asked by
aiman
3,313 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
2,897 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
2,525 views
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