1) The defect in which the image is formed beyond retina is called ------------ a) long sightedness b) Blind spotting c) Image defect 2) Lenses form images through ---------- a) Dispersion b) Diffraction c) Refraction 3) In a concave mirror ,the image size depends upon -------- a) size of the object b) position of the object c) Area covered by the object 4) A magnifying glass is also called --------- a) Endoscope b) Telescope c) Simple microscope 5) To illuminate the inaccessible places in the tooth ,dentist use -------- a) convex lens b) concave mirror c) concave lens

Geometrical Optics

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