Give two applications of reflection of light from a plane mirror.
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An astronomical reflecting telescope uses a large parabolic mirror to gather dim light from distant stars. A plane mirror is used to reflect the image to the eyepiece. Parabolic mirrors are used in torches and car headlamps as reflectors. A small lamp is placed at the focus point of the mirror to produce parallel rays
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plane mirror is used to reflect the image to the eyepiece. Parabolic mirrors are used in torches and car headlamps as reflectors. A small lamp is placed at the focus point of the mirror to produce parallel rays. ... An overhead projector as in figure uses a concave mirror to reflect light from the object to the screen..
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