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MODERN PUBLICATION-RAY OPTICS AND OPTICAL INSTRUMENTS-Revision Exercises (Short Answer Questions)
- Two monochromatic rays of light are incident normally on the face AB o...
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- Obtain an expression for the combined focal length for two thin convex...
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- लेंस समीकरण (1)/(v) -(1)/(u) =(1)/(f) की सहायता से दर्शाइए कि अवतल ल...
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- A ray of light falling at an angle of 50^@ is refracted through a pris...
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- How does angle of deviation vary with the angle of incidence in case o...
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- Sky appears blue in colour. Explain.
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- Why does the sun appear red at sunset ?
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- Why does the Sun visible before the actual sunrise and sunset look red...
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- Why is there no dispersion of light refracted through a rectangular gl...
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- Eye is more sensitive to yellow colour but danger signals are made wit...
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- A convex lens of focal length 20 cm and a concave lens of focal length...
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- What is hypermetropia (far-sightedness) ? What are its causes ? How ca...
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- Calculate the radius of the curvature an equi-concave lens refrective ...
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- An equilateral glass prism has a refrective index 1.6 in air. Calculat...
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- What is astigmatism ? How can it be removed ?
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- Draw a ray diagram for the formation of image by a compound microscope...
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- Objective of a compound microscope should have small focal length. Why...
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- Draw a schematic ray diagram of reflecting telescope showing how...
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- अपवर्ती दूरदर्शी का नामांकित किरण आरेख खीचिए | इसकी आवर्धन क्षमता को प...
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- (a) Show using a proper diagram how unpolarised light can be linearly...
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