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Answer the following questions: (b) 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., the retina) of our eye. Is there a contradiction? |
| Answer» Solution :(b) When the REFLECTED or refracted RAYS are divergent, the image is virtual. The divergent rays can be converged on to a screen by means of an appropriate converging lens. The convex lens of the eye does just that. The virtual image here SERVES as an object for the lens to PRODUCE a real image. Note, the screen here is not LOCATED at the position of the virtual image. There is no contradiction. | |