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CP SINGH-OPTICAL INSTRUMENTS-EXERCISES
- Two point white dots are 1mm apart on a black paper. They are viewed b...
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- An astronaut is looking down on earth's surface from a space shuttle a...
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- 1. Identify the wrong description of the above figures
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- Mark the correct options (i) If the far point goes ahead, the power ...
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- In the case of hypermetropia (i) the image of a near object is forme...
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- Astigmatism for a human eye can be removed by using
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- A man, wearing glasses of power +2D can read clearly a book placed at ...
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- A person whose far-point is at 30cm wants to read at 50cm. The power o...
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- A person wears glasses of power -2.5D. The defect of the eye and the f...
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- A far-sighted man can see clearly at a distance of 1.0m. The power of ...
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- The near point of a person is 50 cm and the far point is 1.5m. The spe...
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- An eye specialist prescribes spectacles having combination of convex l...
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- How should people wearing spectacles work with a microscope
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- Chromatic aberrations in the formation of image by a lens arise becaus...
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- Which of the following quantities related to a lens depend on the wave...
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- Let f(v) and f(r) are the focal lengths of a convex lens for violet an...
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- An achromaic convergent system of focal length +20cm is made of two le...
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- A combination of two thin lenses of the same material with focal lengt...
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- The dispersive powers of crown and flint glasses are 0.02 and 0.04 res...
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- The dispersive power of the material of lens of focal length 20cm is 0...
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