Science, asked by hazmanam7200, 1 year ago

Show The Ray Diagram Of Image Formation By

a) Compound Microscope

b) Simple Microscope

c) Terrestrial Telescope

d) Astronomical Telescope

Also Derive there formula of magnification

and give the nature of image formed by them

Answers

Answered by Anonymous
2
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A. The image formed by a compound microscope is is Real, magnified and inverted.

B.)Here AB is the actual object and A'B' is the image formed by the microscope. The image formed by the microscope is erect and just the enlarged version of the original image. 



C.)Terrestrical telescope is use to observe object on the earth’s surface. It consist of three convex lenses working as objective, the inverter, and the eyepiece respectively. The inverter lens is used to invert the image from the objective lens so that it will represent the real object orientation (not up-side-down).


D.)Normally the image appears upside down in the eyepiece. The reason is that to correct the image generally reduces the image quality through loss of light, and secondly, the image orientation for astronomical objects is largely irrelevant.


(IMAGES ARE IN THE ORDER A, B, C, D)






The Magnification Equation. Themagnification equation states that M = Hi/Ho = - Di/Do, where M is themagnification, Hi is the height of the image, Ho is the height of the object, Di is the distance from the lens to the image and Do is the distance of the object to the lens.




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Answered by RakeshPateL555
0
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\huge\mathfrak\purple{simple\:microscope}

(See fig 1st)
It is used for observing magnified images of objects. It is consists of a converging lens of small focal length.

Magnifying Power

(i) When final image is formed at least distance of distinct vision (D), then M=1+d/f

where, f= focal length of the lens.

(ii) When final image is formed at infinity, then M = D/f

\huge\mathfrak\purple{Compound\:Microscope}

(See fig. 2nd)
It is a combination of two convex lenses called objective lens and eye piece separated by a distance. Both lenses are of small focal lengths but fo < fe, where fo and feare focal lengths of objective lens and eye piece respectively

Magnifying Power

M = vo / uo {1 + (D/fo)

Where vo= distance of image, formed by objective lens and
uo = distance of object from the objective

(ii) When final image is formed at infinity, then
M = vo/uo . D/fe

\huge\mathfrak\purple{Astronomical\:microscope}

(See fig. 3rd)
It is also a combination of two lenses, called objective lens and eye piece, separated by a distance. It is used for observing distinct images of heavenly bodies like stars, planets etc

Magnifying Power

(i) When final image is formed at least distance of distinct vision (D), then M = fo/fe {1+ (D/fe)} where foand fe are focal lengths of objective and eyepiece respectively.

Length of the telescope (L) = (fo + ue)

where, ue = distance of object from the eyepiece.

(ii) When final image is formed at infinity, then M = fo/fe

Length of the telescope (L) = fo + fe

For large magnifying power of a telescope fo should be large and feshould be small.

For large magnifying power of a microscope; fo < fe should be small.

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