Physics Ray Optics Level: Misc Level
How far from a converging lens with a focal length of 21 cm should an object be placed to produce a real image which is the same size as the object?
Physics Ray Optics Level: Misc Level
A stamp collector uses a converging lens with focal length 26 cm to view a stamp 16 cm in front of the lens.
(a) Is the image real or virtual?
(b) What is the magnification?
Physics Ray Optics Level: Misc Level
A beam of light is emitted in a pool of water from a depth of 77.0 cm. Where must it strike the air-water interface, relative to the spot directly above it, in order that light does not exit the water?
Physics Ray Optics Level: Misc Level
Which of the following (if any) have an effect on the location on the image formed by a lens and how? (A) lens thickness (B) type of lens material (C) Frequency of the light emitted the object (D) type of lens (E) all of these (F) none of these (G) only A, and B.please expain why choice and HOW the it affect the LOCATION of the image.
Physics Ray Optics Level: Misc Level
A 5 cm arrow that points due north is placed in front of a vertical concave lens ( its plane is north and south) at "do "=(0.8 x focal length), a greater distance than "F" The resulting image points where?
Physics Ray Optics Level: Misc Level
A 5 cm green arrow ( light source) that points northeast is placed directly in front of a vertical east /west convex lens at " do" ( the "0" is an underscript) = x focal lenght). The resulting image points where?. or is there no image Give as vivid a description of your work as possible.
Physics Ray Optics Level: Misc Level
ERROR
Through what range of incident angles can light escape from the water in the tank.
The diagram shows: An x and y axis, the y axis is straight up (I) from the top of the y axis there is an angle comming down from it (it looks like a 45 degree angle). sitting on top of the x axis n =1.33 WATER---(H2o --------I ). ( I =y axis)
The next shaded area under that n =1.60 glass
Under that .........................n =1.0 Air.
Physics Ray Optics Level: Misc Level
A beam of light enters water from the air. a) If its angle of incidence is 70 degrees, What is the angle of refraction? b) At what angle must it enter the water if its angle of refraction is to be 20 degrees?
Physics Ray Optics Level: Misc Level
The red light from a helium -neon laser has a wavelength =633 n m in a vacuum. lts speed is 1.92 X108 m /s.Find : a) the index of refraction of the oil, b) the wavelength in oil c) the frequency in the oil, d) the frequency in the vacuum.
Physics Ray Optics Level: Misc Level
Using a convex mirror (60 cm radius of curvature),it is desired to obtain an image half as far behind the mirror as the object is in front of it. a) Where should the object be placed? b) What will be the mirror s magnification in this case?
Physics Ray Optics Level: Misc Level
Two lenses are both converging, and each has a 20 cm focal length. They are placed 40 cm apart. A 5 cm high object is placed 80 cm in front of the lens. find the final image position and its Size. Is it Real ? Is it Upright?
Physics Ray Optics Level: Misc Level
It is desired to use a 60 cm focal length diverging lens to from a virtual image of an object. The image is to be one - third as large as the object. a) Where should the object be placed relative to the lens? b) What will be the image distance?
Physics Ray Optics Level: Misc Level
An object is imaged by a covering lens of 40 cm focal length. Find the image position by means of a" Ray diagram" for the following object distances. ( note : you can draw object to any height you want besides 5 cm ) a) 80 cm b) 50 cm c) 20 cm. in each case is the image Real ? Upright?
Physics Ray Optics Level: Misc Level
The left face of a biconvex lens has a radius of curvature of 12.0 cm, and the right face has a radius of curvature of 18.0 cm. The index of refraction of the glass is 1.44. (a) Calculate the focal length of the lens. (b) Calculate the focal length if the radii of curvature of the two faces are interchanged.
Physics Ray Optics Level: Misc Level
A submarine is 300 m horizontally out from the shore and 100 m beneath the surface of the water. A laser beam is sent from the sub so that it strikes the surface of the water at a point 210 m from the shore. If the beam just strikes the top of a building standing directly at the water s edge, find the height of the building.
