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Optics
The size of an image depends on the visual angle. Then, in a magnifying glass, if the angle subtended by the image and the object to the eye is same, magnification still occurs. How?
Optics
what is the relation between focal length and refractive index of a lens?
Optics
what colour would sunlight be if the atmosphere were much denser? (50 times denser for example)
Optics
Can IR light "practically" be treated as visible light using snell's law ? . see this specific example : Can we "practically" make total internal reflction for the Mid-infrared light (10 microns) using right angle prism made of ir transparent material ?
and How also by other ways can we reflect mid-Ir practically ?
thanks
and How also by other ways can we reflect mid-Ir practically ?
thanks
Optics
Two converging lenses, A with a focal length of +10.0cm and B with a focal length of +12.0cm, are placed 40cm apart. An object 4.0cm high is placed 15.0cm to the left of lens A. Determine the position and magnification of the final image produced by the lens pair by two methods:
A) by graphical construction, to scale, with a measurement of the
final image B) by lens equation
A) by graphical construction, to scale, with a measurement of the
final image B) by lens equation
Optics
Research the mirror and optical system of the Hubble Space Telescope. Construct a scale drawing of the optical system, explain how this design differs from the basic Newtonian reflector system we discussed in class, and make some comparison between the capabilities of this system and the similar reflector systems on the earth.
Optics
why do the wet spot on the clothes are always darker that the original color of the cloth?
Optics
1) Two sphericl mirrors of radii of curvature -20cm and +24cm are placed coaxially 41.33cm apart. An object is placed 20cm from the convex mirror. Find the nature and the position of the final image formed after reflection in the convex mirror, and then in the concave mirror.
Optics
A dentist uses a small mirror with a radius of 36 mm to locate a cavity in a patient's tooth. If the mirror is concave and is held 15 mm from the tooth, what is the magnification of the image?
Optics
How can I make a question in optics specifically about laser? How should I construct a question with answer. thank you
