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Question
Draw a ray diagram showing the image formation of a distant object by a refracting telescope ?
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Solution
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| A number of optical devices and instruments have been designed and developed such as periscope, binoculars, microscopes and telescopes utilising the reflecting and refracting properties of mirrors, lenses and prisms. Most of them are in common use. Our knowledge about the formation of images by the mirrors and lenses is the basic requirement for understanding the working of these devices. |
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OR
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An optical instrument that uses objective and eyepiece lenses to magnify distant terrestrial or celestial objects is called a:
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