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Focal distance of a concave lens is always what?
To my understanding of psychology, the lens convexity in distant vision is increased in order to better take in the visual stimuli. To focus visual stimuli on the fovea (focus point) of the retina, the lens undergoes a process of adjusting called "accommodation," and it becomes more convex to ensure that distant objects reach the retina. A failure to properly accommodate leads to nearsightedness (faraway objects falling short of retina) or farsightedness (nearby objects falling past retina)
How is magnifying power of telescope and a microscope are a affected by increasing the focal length of their objectives?
The magnification of a telescope M is the the focal length of the objective Fo over the focal length of the eyepiece Fe so increasing the focal length of the objective increases the magnification. The magnification of a microscope M is approximately tube length L/Fo x 25/Fe. Therefore increasing the focal length of the objective reduces the magnification.
An object is lifted 2 m in 5 seconds by a force of 100 N. Which of the following statements is correct?
Power = 40 W
Calculate the watts of power expended when a force of 1 N moves a book 2 m in a time interval of 1 s?
2 watts of energy is expended
How much power is used to lift a 1.9 kg brick 1.0 m in 2.0 s?
Power = force (mass * g) * velocity = (2.0 * 9.8) * 2 = 39.2 watts
Focal distance of a concave lens is always what?
To my understanding of psychology, the lens convexity in distant vision is increased in order to better take in the visual stimuli. To focus visual stimuli on the fovea (focus point) of the retina, the lens undergoes a process of adjusting called "accommodation," and it becomes more convex to ensure that distant objects reach the retina. A failure to properly accommodate leads to nearsightedness (faraway objects falling short of retina) or farsightedness (nearby objects falling past retina)
What is the SI unit of converging ability of a lens?
Optical power (also referred to as dioptric power, refractive power, focusing power, or convergence power) is the degree to which a lens, mirror, or other optical system converges or diverges light. It is equal to the reciprocal of the focal length of the device.[1] The dioptre is the most common unit of measurement of optical power. The SI unit for optical power is the inverse metre (m−1).
The far point of myopia person is 85 cms in front of the eyes what is nature and power of the lens required to correct the vision?
The defect the person suffers from is myopia. 1/f=1/u+1/v 1/f=1/-85-1/infinity f=-85 cm =-0.85 m The power of the lens=1/f =1/-0.85 =-1.176 D Concave lens have negative focal length and are used for myopia. Thus the the lens that should be used to correct this defect is a concave lens of -1.176 D.
How is magnifying power of telescope and a microscope are a affected by increasing the focal length of their objectives?
The magnification of a telescope M is the the focal length of the objective Fo over the focal length of the eyepiece Fe so increasing the focal length of the objective increases the magnification. The magnification of a microscope M is approximately tube length L/Fo x 25/Fe. Therefore increasing the focal length of the objective reduces the magnification.
What is m to the 2 power plus m to the 3 power?
it depends on what m is.
What is m to the power of 4 divided by m to the power of six simplified?
it will be m to the power -2. assuming m as any variable.
What is m to the fourth power times m to the third power?
m^4 x m^3 = m^7Using a numerical example, 2^4 x 2^3 = 16 x 8 = 128 = 2^7
Simplify m to the power of 3 times the squareroot of m?
m7/2
Will new oakley m-frame lens fit on an older vintage pair of frames frames?
No. I spoke to Oakley and they said the M frames changed in 2000 and the lens fittment changed.
What has the author David M Haskell written?
David M. Haskell has written: 'Through a lens darkly'
How do you disable focus on a camera?
Move the little catch on the lens to M
What is the answer to -2m to the fourth power times n to the 6thpower to the 2nd power?
The question is open to multiple interpretations but I think you mean [(-2m)^4] x (n^6)^2 = [(-2)^4](m^4)(n^12) = 16(m^4)(n^12) or 16 times m to the 4th power times n to the 12th power.
