Question

i want to know about compound microscope and its diagram.

Answer 1

Compound Microscope,

History & Importance
Microscope plays a great role in almost every field of science.We were not aware of the awesome world of microorganisms until a
compound microscope was invented by Antoni Van Leeuwenhoek.

Although Zacharias Janssen had invented the first microscope but its magnification power was just 9.So with this its not able to see very tiny particles.Robert hook modified the model of Zacharias Janssen's model and was able to increase the power to 147x.Antoni van leeuwenhoek's microscope was able to magnify up to 270x.

✧Now the parts of a compound microscope:
(1) Eyepiece lense:Its the first point of magnification.Usually power is 10x or 15x.

(2)Body tube:It connects eyepiece lense and the objective lense or nose piece.

(3)Arm:It bears the weight of the body and makes it upright.It connects body tube and the stage.

(4)Nose piece:This is a revolving disk with objective lenses attached to it.

(5) Objective lenses:This is the second point of magnification.Usually powers are 4x,10x,40x and 100x.

(6)Stage:This is the place where the slide is placed.It has pins attached to it to grip the slide.

(7)Course adjustment kncb:This regulates the distance between objective lenses and the stage.

(8) Fine adjustment kncb:This brings the speciment into focus.

(9) Mirror:lt reflects the light from outside and sends it towards the condenser.

(10) Condenser or diaphragm:It has some holes of various radius.This holes regulate the amount of light.

(11) Inclination joint:This joints the base and the arm.

(12)Base:It is the bottom most point of the microscope and supports it.

Sorry but don't know about sub stage.

That's it
Hope it helped ლ(´ڡ`ლ)

Answer 2

$<b>____________♦♦♥♦♦____________$

$\huge\mathfrak\purple{\:\:\:\:\:\:\:\:hello\:\:\:mate}$

$<b>____________♦♦♥♦♦____________$
$\tt{\pink{\huge{here\:is\:your\:answer}}}$
$<b>____________♦♦♥♦♦____________$

$\huge\mathfrak\purple{simple\:microscope}$

(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.

$<b>____________♦♦☺♦♦____________$

$\sf\purple{By-\:\:\:RAKESH\:\:PATEL}$

$\mathbb{\red{\huge{\:\:\:\:\:THANK\: YOU}}}$
$<b>________▶▶▶⭐⭐⭐◀◀◀________$