Question

• Differentiate between a compound microscope and a stereomicroscope (dissecting microscope) in terms of: i. Magnification (w
0 0
Add a comment Improve this question Transcribed image text
Answer #1

1) ans- Magnification

Compound microscope is used where higher magnification is required to study internal structure of cells eg- blood cells , bacteria , skin etc .varies from 40x to 1000 x .

Stereomicroscope is used for lower magnification for dissection of larger object eg- flower , rocks , insects .Varies from 6x to 50x

2) Working distance - definition - distance between microscope lens and focussed object.

Compound microscope (CM) have a fairly small working distance ,varies from 0.14 - 4 millimetres.

SM varies from 25- 150 millimetres . used durin dissection eg- watch repair .

3) Type of image formed

In compound microscope - It is an optical devices which uses two lenses primary lens forms real imge aand sevondar lens is used as a magnifier to make an enlarged virtual image . When an object is placed farther from a convergent lens than the focal length , tbe lens produced an inverted , real and enlarged image . Image formed by stereo microscope is inverted . .( Inverted image means that the imge is upside down when compared to the object .)

An image in which directions are the same as those in the object, in contrast to an inverted imaage is called an erect image . It is the one that appears right side up.

4) Type of specimen viewed

Compound microscope - specimen are thin enough that light can pass through them from below. It is designed for viewing small cells or thin sections of orgns or tissues placed on a glass mounting side.

Stereomicroscope - large specimen such animals plant nd organs .

5) No of objective lenses-

Compound microscope are typically supplied with 3_4 objective lenses .

Stereo microscope use 2 objective lenses to generate 3 dimensional image .

6) Location of light source

Compound microscope- light is passed through the sample ( called transmitted light illumination ) i.e rely on light shining from beneath the specimen.Larger objects need to be sliced to allow this to happen efficiently .

Stereomicroscope - using incident light illumination ( light reflected off the surface of the sample observed by the user ) . Although it can also be combined with transmitted light in same instrument.

Add a comment
Know the answer?
Add Answer to:
• Differentiate between a compound microscope and a stereomicroscope (dissecting microscope) in terms of: i. Magnification...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 4-18 Complete the summary table comparing the features and functions of the compound and dissecting microscopes...

    4-18 Complete the summary table comparing the features and functions of the compound and dissecting microscopes Attribute/Characteristic Compound Microscope Dissecting Microscope Binocular function Magnifying power of eyepiece 209 Range of objective power Total magnification power Fine focus capable Inverted image Condenser/iris present Size of working distance Types of illumination available Appropriate applications

  • Lab activities and worksheets Read through this section before you get to lab so you are...

    Lab activities and worksheets Read through this section before you get to lab so you are aware of what you will be doing for this lab. Microscope labeling It is important to know the structure of something in order to know how it works and how to use it. Use the following list of parts of a compound microscope to label the diagram. Be sure to understand the functions of each part. Ocular: this is the lens at the top...

  • As a lab supervisor, you frequently look at microscope slides prepared by technicians. You use a...

    As a lab supervisor, you frequently look at microscope slides prepared by technicians. You use a microscope with objective and eyepiece lens focal lengths respectively of 0.250 cm and 3.15 cm. The image distance for the image produced by the objective lens is 14.6 cm when the microscope is adjusted for maximum magnification. (a) Calculate the distance between the objective and eyepiece lenses. (b) Calculate the maximum magnification (i.e. calculate the magnification when the microscope is adjusted to form the...

  • 1. As a lab supervisor, you frequently look at microscope slides prepared by technicians. You use...

    1. As a lab supervisor, you frequently look at microscope slides prepared by technicians. You use a microscope with objective and eyepiece lens focal lengths respectively of 0.250 cm and 3.15 cm. The image distance for the image produced by the objective lens is 14.6 cm when the microscope is adjusted for maximum magnification. (a) Calculate the distance between the objective and eyepiece lenses. (b) Calculate the maximum magnification (i.e. calculate the magnification when the microscope is adjusted to form...

  • In a compound microscope, the focal length of the objective is 3.71 cm and that of...

    In a compound microscope, the focal length of the objective is 3.71 cm and that of the eyepiece is 6.60 cm. The distance between the lenses is 17.6 cm. (a) What is the angular magnification of the microscope if the person using it has a near point of 32.1 cm? (b) If, as normal, the first image lies just inside the focal point of the eyepiece, as in the drawing, how far is the object from the objective? (c) What...

  • EXERCISE 1:USE AND CARE OF THE MICROS D CARE OF THE MICROSCOPE 11. Alter use, remove...

    EXERCISE 1:USE AND CARE OF THE MICROS D CARE OF THE MICROSCOPE 11. Alter use, remove the slide, wipe oil of it, put dist cover on the microscope, and return it to the designated area. 12. When a problem does with the microscope obtain help from the instructor. Do not use other microscope unless yours is declared out of action." FIGURE 14 Focusing the condenser. () Ching low power, lower the condenser til distinct circle of light is visible. Cester...

  • In a compound microscope, the objective has a focal length of 0.48 cm, while the eyepiece...

    In a compound microscope, the objective has a focal length of 0.48 cm, while the eyepiece has a focal length of 1.9 cm. The separation between the objective and the eyepiece is L = 10.0 cm. Another microscope that has the same angular magnification can be constructed by interchanging the two lenses, provided that the distance between the lenses is adjusted to a value L'. Find L'.

  • ur eyes. Each new lab day, as you begin to study your arst slide, repeat this...

    ur eyes. Each new lab day, as you begin to study your arst slide, repeat this procedure, arssm increase or decrease the contrast by adjusting the iris dia- u em opening. Note that the maximum amount of light provides itle contrast. Adjust the aperture until the imageis sharp. littie Move the slide slowly to the right. In what direction does the image in the ocular move? n. Is the image in the ocular inverted relative to the specimen on the...

  • The overall magnification of a compound microscope is |M|= 270. The distance between the eyepiece (f...

    The overall magnification of a compound microscope is |M|= 270. The distance between the eyepiece (f = 5 cm) and objective lens is 19 cm. What is the focal length of the objective lens and how far from the lens should the object be placed for the image to be in focus?

  • In focusing a compound microscope, one should view the slide under: Lowest magnification first Highest magnification...

    In focusing a compound microscope, one should view the slide under: Lowest magnification first Highest magnification first It doesn't matter which magnification one first views the slide No answer text provided. Question #12: What makes meiosis different from mitosis? Meiosis produces diploid cells, while mitosis produces haploid cells Meiosis does not have a G1 phase while mitosis has a G1 phase Homologous chromosomes randomly line up in pairs during metaphase I in meiosis, whereas in mitosis during metaphase, each chromosome...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT