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What is a difference between concave mirror and concave lens?
A concave mirror is usually used to project something onto a screen. A concave lens is usually used to view an image through the naked eye.
Is it possible for a concave lens to for an image on a screen?
yes
How can you use a screen to determine whether an image is real or virtual?
When you project an image onto a screen, if it is real you can see the image on the screen, if it is virtual then you cant.
Why concave lens has virtual focus?
Concave lenses would have only diverging action. So parallel beam of light after passing through a concave lens have to go diverged. Only converging waves could produce a real image on a screen. But diverging rays cannot meet at a point and so they appear to come from a point and hence that point is taken to be the virtual image
What would happen if concave mirror is missing in projector?
than the rays of the projector will not converge as the concave lens has the characterstic to converge the rays in one place if it converge the rays the image will found on th screen
What is a difference between concave mirror and concave lens?
A concave mirror is usually used to project something onto a screen. A concave lens is usually used to view an image through the naked eye.
Is it possible for a concave lens to for an image on a screen?
yes
Can the image formed by a plain mirror be obtained on a screen?
Plane mirrors do not create images that can be placed on a screen, only concave mirrors can.
How is light reflected off of a concave mirror?
The way light is reflected is different in a concave mirror depending on the position and distance from the object. when light hits the concave mirror when it is near the object, the rays are scattered and it forms a virtual image, i.e it does not come on the screen. the image will be erect and higly magnified. When it is taken further from the object, the image becomes inverted and real, i.e it can be seen on a screen, and will still be magnified.
How can you use a screen to determine whether an image is real or virtual?
When you project an image onto a screen, if it is real you can see the image on the screen, if it is virtual then you cant.
Why concave lens has virtual focus?
Concave lenses would have only diverging action. So parallel beam of light after passing through a concave lens have to go diverged. Only converging waves could produce a real image on a screen. But diverging rays cannot meet at a point and so they appear to come from a point and hence that point is taken to be the virtual image
How do you use epidiascope?
Place an image inside it and project on screen. Simple.
How to show Twitter tweet in our project?
You could print screen the specific tweet, cut around it so that the image is only the tweet, and then use it in your project by uploading it (if it's an online project) or by printing it (if it's a paper based project).
Could a camera with concave lens instead of convex still take pictures?
Not Possible..NEVER....In order to obtain image on any media.. be it your digital camera's censor or the old-school photographic film;The image so farmed has to always be Real.(real images are often inverted too! )Additionally :The concave lens never forms a real image. with concave lens you can very-well see it virtual n erect image inside the lens with your eyes but cannot obtain it on any physical screen/photographic plate.
What kind of image is formed by a concave image?
image formed by the concave lens will be erect , virtual and smaller than the size of object.
What would happen if concave mirror is missing in projector?
than the rays of the projector will not converge as the concave lens has the characterstic to converge the rays in one place if it converge the rays the image will found on th screen
What lens could correct the image formed of a nearsighted person?
concave lenses are prescribed by doctors
