The magnifying power of simple microscop...

The magnifying power of simple microscope is

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The magnifiying power of simple microscope is maximum when image is formed at _____

The magnifying power of a simple microscope is 6. The focal length of its lens in metres will be, if least distance of distinct vision is 25cm

The magnifying power of a simple microscope is given by 1+D/f , where D is the least distance for clear vision. For farsighted persons, D is greater than the usual. Does it mean that the magnifying power of a simple microscope is greater for a farsighted person as compared to a normal person? Does it mean that a farsighted person can see an insect more clearly under a microscope than a normal person?

The magnifying power of simple microscope can be increased if we use a lens of

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What is the magnifying power of a simple microscope of focal length 5 cm, if the image is formed at the distance of distinct vision ?

a) The anlge subtended at the eye by an object is equal to the angle subtended at the eye by the virtual image produced by a magnifying glass. In what sense then does a magnifying glass provide angular magnifications? b) In viewing through a magnifying glass, one usually positions one's eyes very close to the lens. Does angular magnification change if the eye is moved back? c) Magnifying power of a simple microscopes is inversely proportional to the focal length of the lens. What then stops us from using a convex lens of smaller and smaller focal length and achieving greater and greater magnifying power? d) Why must both the objective and the eyepiece of a compound microscope have short focal lengths? e) When viewing through a compound microscope, our eyes should be positioned not on the eyepiece but a short distance away from it fot best veiwing. Why? How much should be that short distance between the eye and eyepiece?

AAKASH INSTITUTE-RAY OPTICS AND OPTICAL INSTRUMENTS-EXERCISE

A lens made of material of Refractive index mu(2) is surrounded by a m...
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A light ray is incident normally on one of the refracting faces of a p...
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If a light ray incidents normally on one of the faces of the prism of ...
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A ray of light is incident on one of the faces of the angle prism with...
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A prism of refractive index sqrt(2) has a prism angle of 60^(@). At wh...
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The least angle of deviation for a glass prism is equal to its refract...
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A light ray of angles of incidence 40^(@) emerged from the prism in mi...
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The angle of minimum deviation for a 75^(@) prism of dense glass is fo...
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Suppose a small angled prism of 6^(@) deviates a ray through 3^(@), th...
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For a given prism thetaanddelta are angular dispersion and deviation. ...
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If a is the size of scatterer and lamda is the wavelength of light the...
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Which of the following colour is scattered most is atmosphere?
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The eye defect, Astigmatism can be corrected by using , -
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The magnifying power of simple microscope is
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Lateral magnification of objective of compound microscope is 100 and a...
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Focal length of objective eye piece and inverting lens of a terrestria...
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Advantages of cassegrain telescope is/are
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A telescope consisting of objective of focal length 60cm and a single ...
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A telescope has an objective lens of focal length 200cm and an eye pie...
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Which of the following is not involved in Rainbow formation?
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