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Optics
http://www.chegg.com/homework-help/questions-and-answers/person-looking-container-able-faredge-container-s-shown-figure--theheight-container-h-s-wi-q500607
solve this problem pleaseee
solve this problem pleaseee
Optics
http://www.chegg.com/homework-help/questions-and-answers/person-looking-container-able-faredge-container-s-shown-figure--theheight-container-h-s-wi-q500607
Please solve this question please....I really have no idea how to solve this
Please solve this question please....I really have no idea how to solve this
Optics
what is meant by angle of reflection is 40
Optics
A cylindrical glass of radius r=3 cm is full of salt water of height h=10 cm with the water's refraction index changing linearly from the bottom n1=1.401 to the top n2=1.400.
A flashlight is positioned so that light shines horizontally onto the glass. If we look at the light beams that pass through the center axis of the glass and out the other side, we notice that the outgoing ray (after it leaves the glass on the other side) is bent by a small angle with respect to the horizontal axis. Find the magnitude of that angle in degrees.
Details and assumptions
You may neglect any refraction in the actual glass itself. All the refraction happens in the water.
A flashlight is positioned so that light shines horizontally onto the glass. If we look at the light beams that pass through the center axis of the glass and out the other side, we notice that the outgoing ray (after it leaves the glass on the other side) is bent by a small angle with respect to the horizontal axis. Find the magnitude of that angle in degrees.
Details and assumptions
You may neglect any refraction in the actual glass itself. All the refraction happens in the water.
Optics
the filament of a lamp is 80cm frm a screen and converging lens make image three tyms magnified on a screen...find focal length and distance of lens frm the filament???
Optics
Hi!
My textbook says that dispersion of light takes place in prism due to differing speed and wavelength(hence frequency). But white light(a mixture of 7 colors) travels at 3* 10^8 m/s. Then how come speed changes inside prism? Also if the deviation of a particular colored light is inversely proportional to wavelength and directly proportional to frequency then how come they travel at different speeds? Please help me... I am totally confused!
My textbook says that dispersion of light takes place in prism due to differing speed and wavelength(hence frequency). But white light(a mixture of 7 colors) travels at 3* 10^8 m/s. Then how come speed changes inside prism? Also if the deviation of a particular colored light is inversely proportional to wavelength and directly proportional to frequency then how come they travel at different speeds? Please help me... I am totally confused!
Optics
after verifying angle i=r for reflection of sound, we lift one of the two pipes vertically to a small height, then :-
a)the reflected sound becomes louder
b)there is no effect on reflected sound
c) there is no reflection of sound
which of the following is correct and why? plz answer
a)the reflected sound becomes louder
b)there is no effect on reflected sound
c) there is no reflection of sound
which of the following is correct and why? plz answer
Optics
4.why it is necessary to use narrow source for Fresnel's bi-prism and extended source for newton's ring
Optics
2.a Plano-convex lens (refractive index of glass-3/2) of thickness 3 cm and radius of curvature of the curved surface is 8 cm.calculate the minimum distance between the object and its real image.
Optics
1.a glass sphere of radius 1.5 cm (refractive index of glass-3/2)is placed with one side in air and other side in contact with water (refractive index of glass-4/3) .find the positions of the cardinal points.
