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Why the position of fish inside the water seems to be at less depth than that of its actual position?

asked Oct 18, 2017 in Physics by sonia (36.5k points)

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In large shopping centres, convex mirrors are used for security purposes. Do you know why? .

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What is meant by the terms nearsightedness and farsightedness. How these defects can be corrected?

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Draw the ray diagram for image formation in human eye when object is placed at near point

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What do you mean by near point and far point of the eye?

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Define the term accommodation. How defects in accommodation be corrected?

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Describe the mechanism of eye for focusing the image of an object onto the retina.

asked Oct 18, 2017 in Biology by sonia (36.5k points)

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Describe how image is formed in human eye. Draw ray diagrams to show the formation of images in the normal human eye.

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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With the help of a ray diagram, how you can show the use of thin converging lens as a magnifying glass?

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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Draw the ray diagrams of (i) Simple microscope (ii) Compound microscope Refracting telescope.

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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Mention the magnifying powers of the following optical instruments

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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What is telescope? Describe the working of a refracting telescope.

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What is a compound microscope? Describe its some features and uses.

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What is simple microscope? How is image formed in it?

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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Define the terms resolving power and magnifying power or angular magnification.

asked Oct 18, 2017 in Physics by shamroz (41.5k points)

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Describe the use and working of endoscope.

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What is a light pipe? Describe its uses.

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What is the principle of optical fibres?

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What is optical fibres?

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Describe the use of totally internal reflecting prism.

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