Differentiate between:
real image- virtual image
convex lens- concave lens

Answer

1. A real image is formed when the rays of light after reflection or refraction actually meet at some point whereas a virtual image is formed when the rays of light after reflection or refraction appear to meet at a point. ... A real image can be formed in in a screen but a virtual image can be only seen in the mirror.

2. A convex lens or converging lens focuses the light rays to a specific point whereas a concave lens or diverging lens diverges the light rays. A lens is a transparent material (either curved or flat surface) based on the principles of refraction

answer: i'm not sure which is which for i get confused on it all the time but i can tell you that the answer lies with the convex and concave devices. i hope this you. have a good day and best of luck to you!

explanation:

the duration of a photographic flash is related to an rc time constant, which is 0.100 μs for a certain camera.