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?

Put your comment

Ask Question & Get Answers from Experts
Browse some more (Physics) Materials
The sound intensity in front of a loudspeaker diaphragm vibrating at 2kHz is 4.3 W/m^2, with an acoustic power output of 0.3W. Calculate the diameter of the diaphragm. in cm
How many moles of atoms are there in: (a) 28g of N_2; (b) 32 g of O_2; (c) 16 g of methane - CH_4; (d) 38 g of F_2?Balance this question: __Fe(s) + __ O_2(g) -> __ Fe_2O_3(s)
A wire carries current to the north (towards the top of the computer screen) through a magnetic field. what is the direction of the magnetic force on the current-carrying wire
A man is trying to get his car out of mud on the shoulder of a road. He ties one end of a rope tightly around the front bumper and the other end tightly around a utility pol
Four 7.0-kgspheres are located at the corners of a square of side 0.50m. Calculate the magnitude of the gravitational force exerted on one sphere which is in left and down c
The top of Mt. Everest is 8750 m above sea level. Assume that sea level is at an average Earth radius of 6.38×10^6 m. What is the magnitude of gravitational acceleration at th
A model airplane with a mass of 0.743 kg is tethered by a wire so that it flies in a circle 30.4 m in radius. Find the torque the net thrust produces about the center of the
What is the magnitude of the runner's total displacement . What is the phase difference between the two waves next they reach the observer.