1) What is the phenomenon of bouncing back of light in the same medium called? a) Refraction b) dispersion c) reflection d) splitting 2) Form of Energy which gives us sensation of sight? a) Sound b) Light c) Pressure d) Force 3) Nerve cells sensitive to bright light a) Cones b) Rods c) Ciliary nerves d) None of the above 4) Identify the part of the human eye on which different images are formed. a) Pupil b) Cornea c) Lens d) Retina 5) Gives colour to the eye a) Pupil b) Iris c) Cornea d) None of the above 6) Name the point inside the human eye where the image is not visible. a) Blind spot b) Cornea c) Pupil d) Optic nerves 7) The light ray, which strikes any surface is called a) Normal b) Reflected ray c) Refracted ray d) Incident ray 8) With what is glass coated in order to convert it into a mirror? a) Copper b) Aluminium c) Silver d) Platinum

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