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CP SINGH-OPTICAL INSTRUMENTS-EXERCISES
- How can we increase the resolving power of a microscope ?
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- Choose the correct option:
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- The focal length of a normal eye lens is about
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- When we see an object, image formed on the retina is (i) real (ii) v...
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- The maximum focal length of the eye lens of a person is greater than i...
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- The human eye has a lens which has
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- The resolving limit of eye is 1min. At a distance of x km from the eye...
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- 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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