What is the Difference Between Real and Virtual Images Formed by Mirrors?

  • Thread starter Thread starter zainahmed1994
  • Start date Start date
  • Tags Tags
    Images Mirrors
AI Thread Summary
Concave mirrors produce real, inverted images that can be projected onto a screen, as the light converges at the image's location. In contrast, convex mirrors create virtual, erect images that cannot be displayed on a screen, as they appear to be located behind the mirror. Real images exist in front of the mirror where light converges, while virtual images are perceived by the brain without actual light convergence. The discussion also touches on the use of optics, like magnifying glasses, which can manipulate real images effectively. Understanding the distinction between real and virtual images is crucial for applications in optics and imaging.
zainahmed1994
Messages
1
Reaction score
0
concave mirror make real and inverted image which means that the image can be obtained on the screen and on the contrary convex mirror makes virtual and erect image and it can't be obtained on screen..i can see that the images made by them are inverted and erect respectively but both the images are obtained on the mirror, so what is meant by real image is obtained on screen??
 
Science news on Phys.org
zainahmed1994 said:
concave mirror make real and inverted image which means that the image can be obtained on the screen and on the contrary convex mirror makes virtual and erect image and it can't be obtained on screen..i can see that the images made by them are inverted and erect respectively but both the images are obtained on the mirror, so what is meant by real image is obtained on screen??
Real images are actually in front of the mirror, while virtual images appear inside the mirror. With a real image, the light actually converges at the site of the image, which allows you to display it on a screen.
 
If you put a screen where the light converges for a real image, you will see the image, that's why it is referred to as "real". Virtual images don't actually exist outside of your mind. Your brain is being tricked by perspective into thinking that there is something on the otherside of the mirror, when there is nothing there.
 
It was explained to me that you can use a magnifying glass or other optics on a "real" image and it works the same as an object at that location.
 
JDługosz said:
It was explained to me that you can use a magnifying glass or other optics on a "real" image and it works the same as an object at that location.
Why would that be any less true for a virtual image? (Of course, you have to place the optics so as to intercept the light from the virtual image.)
 
Thread 'A quartet of epi-illumination methods'
Well, it took almost 20 years (!!!), but I finally obtained a set of epi-phase microscope objectives (Zeiss). The principles of epi-phase contrast is nearly identical to transillumination phase contrast, but the phase ring is a 1/8 wave retarder rather than a 1/4 wave retarder (because with epi-illumination, the light passes through the ring twice). This method was popular only for a very short period of time before epi-DIC (differential interference contrast) became widely available. So...
I am currently undertaking a research internship where I am modelling the heating of silicon wafers with a 515 nm femtosecond laser. In order to increase the absorption of the laser into the oxide layer on top of the wafer it was suggested we use gold nanoparticles. I was tasked with modelling the optical properties of a 5nm gold nanoparticle, in particular the absorption cross section, using COMSOL Multiphysics. My model seems to be getting correct values for the absorption coefficient and...
Back
Top