PSEB-RAY OPTICS AND OPTICAL INSTRUMENTS-EXERCISE
- A person with a normal near point (25 cm) using a compound microscope ...
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- A small telescope has an objective lens of focal length 144cm and an e...
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- A giant refracting telescope at an observatory has an objective lens o...
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- A telescope has objective lens of focal length 15m. If this telescope ...
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- Use the mirror equation to deduce that: an object placed between f and...
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- Use the mirror equation to deduce that: a convex mirror always produce...
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- Use the mirror equation to deduce that: the virtual image produced by ...
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- Use the mirror equation to deduce that: an object placed between the ...
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- A small pin fixed on a table top is viewed from above from a distance ...
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- Figure 9.35 shows a cross-section of a glass fibre of refractive index...
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- Figure 9.35 shows a cross-section of a glass fibre of refractive inde...
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- Answer the following questions: You have learnt that plane and convex ...
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- Answer the following questions: A virtual image, we always say, canno...
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- Answer the following questions: A diver under water, looks obliquely ...
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- Answer the following questions: Does the apparent depth of a tank of ...
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- Answer the following questions: The refractive index of diamond is mu...
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- The image of a small electric bulb fixed on the wall of a room is to b...
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- A screen is placed 90cm from an object. The image of the object on the...
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- Determine the ‘effective focal length’ of the combination of the two l...
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- Two lenses convex lens of focal length 30 cm in contact with a concave...
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