What is an image distance
Course:- Physics
Reference No.:- EM134895

Assignment Help
Assignment Help >> Physics

Q. a) A diamond is underwater. A light ray enters one face of the diamond, and after that travels at an angle of 30 degrees with respect to the normal. What was the ray's angle of incidence on the diamond?

b) A thin glass rod is submerged in oil. What is the critical angle for light travelling inside rod?

c) A biologist keeps a specimen of his favourite beetle embedded in a cube of polystyrene plastic. The hapless bug appears to be 2cm within the plastic. What is the beetle's actual distance beneath the surface?

d) A 1.0-cm-tall object is 10 cm in front of a converging lens that has a 30 cm focal length. Compute the image position and height.

e) A 4.0 cm-tall object is 15 cm in front of a diverging lens that has a -25 cm focal length. Compute the image position and height.

f) A slide projector needs to create a 98-cm-high image of a 2.0-cm-tall slide. The screen is 300 from the slide. Assume that the projector has a thin lens. What focal length does the lens need? How far should you place the lens from the slide?

g) Consider an object with s=12cm that produces an image with s'=15cm. note down that whenever you are working with a physical object, the object distance will be positive (in multiple optics setups, you will encounter "objects" that are actually images, but that is not a possibility in this problem). A positive image distance means that the image is formed on the side of the lens from which the light emerges. Find the focal length of the lens that produces the image described in the problem introduction using the thin lens equation.

Now consider a diverging lens with focal length, producing an upright image that is 5/9 as tall as the object. Is the image real or virtual? Think about magnification and how it relates to the sign of s'.

A lens placed at the origin with its axis pointing all along the x axis produces a real inverted image at x=-24cm that is twice as tall as the object. What is an image distance?

Ask Question & Get Answers from Experts
Browse some more (Physics) Materials
A 50 hard-boiled egg moves on the end of a spring with force constant . It is released with an amplitude 0.300 . A damping force acts on the egg. After it oscillates for 5.0
An ice skater is traveling in a straight, horizontal line on the ice with a velocity of v=5.5m/s in the positive x direction. Write an expression for the normal force, F_n, th
A ball is thrown upward from the top of a building at an angle of 60.0° to the horizontal, What is the horizontal distance (in m) covered by ball before hitting the ground
A singly charged ion of unknown mass moves in a circle of radius 14cm in a magnetic field of 8.2 T. The ion was accelerated through a potential difference of 9kV before it e
A lamp is placed 10 cm in front of a concave spherical mirror that forms an image of the filament on a screen placed 3.0 m from the mirror. What is the radius of curvature o
A student sits on a stool that is free to rotate about a vertical axis. He holds his arms extended horizontally with a 4.0-kg dumbbell in each hand. Find the final angular s
Technetium-99 has an excited state that decays by emission of a gamma ray. The half-life o fthe excited state is 360 min. What is the activity, in curies, of 1.00mg of the exc
What is the wavelength of radio waves. An electron in a TV is accelerated toward the screen across a potential difference of 54.2kV. How much kinetic energy does the electron