To see shadows with the help of our eyes, a screen is required.
Shadows are formed when an object blocks the light. A screen is necessary for the shadow to be projected and only after that, a shadow is visible.
Our eyes help us to see the world around us.
a virtual image cannot be focused on screen. yet we can see the virtual image we obviously bring it to our screen that is our retina of our eyes. is this a contradiction?
We can see the light with our own eyes.
A virtual image, we always say, cannot be caught on a screen. Yet when we ‘see’ a virtual image, we are obviously bringing it on to the ‘screen’ i.e., retina of our eye. Is there a contradiction? [3 MARKS]
Is hydra unicellular or multicellular and if hydra is multicellular then why aren't we able to see them with our eyes?