+1-415-670-9189
info@expertsmind.com
Distance between focal plane and lens
Course:- Physics
Reference No.:- EM133812




Assignment Help
Expertsmind Rated 4.9 / 5 based on 47215 reviews.
Review Site
Assignment Help >> Physics

Question

A convex lens is a transparent device that uses refraction to twist and focus light from an object, forming a sharp image. We'll first investigate how lens produces an image from a point source of light (a lamp).

Choose Screen at upper right, which makes the object a lamp and gives a black screen that can be dragged around. 

Choose many rays at upper left to see how the lens bends some of the rays of light from the lamp.

With lamp positioned far to the left of the lens, you must see that rays that go through the lens converge to a point. If the screen is placed where beams converge, the image on the screen will be in focus (it will be a small dot of light because that is what the object looks like in this case). The screen is then at focal plane. As the lamp is moved closer to the lens, the distance between focal plane and lens.




Put your comment
 
Minimize


Ask Question & Get Answers from Experts
Browse some more (Physics) Materials
A window air conditioner consumes 1500 W of electric power and has COP = 3.7. If it runs continuously for 18h , how much heat gets removed from the house? Express your answer
One cubic centimeter of a cumulus contains 420 water drops,which have a typical radius of 10 μm .(a) How many cubic meters of water are in acylindrical cumulus cloud of heig
A gamma ray disappears in the process of creating an electron-positron pair. If the kinetic energies of the electron and positron are each 2.0 MeV, what was the energy of th
The component of the external magnetic field along the central axis of a 69-turn coil of radius 23.0 cm decreases from 1.90 T to 0.400 T in 1.70 s. what is the magnitude of
Light that passes through a series of three polarizing filters emerges from the third filter horizontally polarized with an intensity of 200 W/m2. If the polarization angle
A capacitor has parallel plates of area 12 cm2 separated by 2.0mm . The space between the plates is filled with polystyrene (K=2.6, Em=2.0×107V/m). Find the permittivity of
Two resistances, one 62? and the other 88?,are connected in parallel. The resistors are then connected to a 12-V battery. a. What is the equivalent resistance of the parallel
An unknown resistor is connected between the terminals of a 7.50 V battery. Energy is dissipated in the resistor at the rate of 0.510 W. At what rate is energy now dissipate