Why should you always begin to use a microscope with the low-power objective?

1 Answer

Answer :

because it allows you to find the part of the slide you want tosee, then you can zoom in by changing focus to see the frame ingreater detail. if you don't start in low power it is extremelydifficult to move around the slide

Related questions

Description : What is the power of the objective lens of a microscope if an eyepiece of power 10x is used and the total magnification of the object is 40x? (A) 4 (B) 10 (C) 40 (D) 400

Last Answer : (A) 4

Description : Are Objective lenses standardized? [microscope]?

Last Answer : I have bought a number of used objectives on line, and have never had the problem of one not fitting, but that may have been luck.

Description : If a light microscope has an eyepiece lens of magnification x15 what magnification of objective lens would be needed to get a total magnification of x1500?

Last Answer : The total magnification is equal to the magnification of theeyepiece multiplied by the magnification of the objective lens.So in this case the objective lens would need to be 100X.

Description : Magnification of compound microscope is not connected with (a) numerical aperture (b) focal length of objective (c) focal length of eye piece (d) tube length.

Last Answer : (a) numerical aperture

Description : A student wishes to study the cell structure under a light microscope having 10X eyepiece and 45X objective. He should illuminate the object by which one of the following colours of light so as to get the best possible resolution? (a) Blue (b) Green (c) Yellow (d) Red

Last Answer : (a) Blue

Description : If a person looking through microscope at the full moon, how would the appearance of moon be changed by covering of objective lens?

Last Answer : Ans. He will observe the full image but its brightness will be reduced. In other word, the intensity of light will decreased.

Description : Electron microscope has a high resolution power. This is due to (a) electromagnetic lenses (b) very low wavelength of electron beam (c) low wavelength of light source used (d) high numerical aperture of glass lenses used.

Last Answer : (b) very low wavelength of electron beam

Description : If a microscope's ocular is marked 10x and the low power objective is marked 2xwhat would be the total magnification when using the low power objective?

Last Answer : What is the answer ?

Description : What change occurred in the intensity of the light in the field of view when you exchanged the low-power objective for the high-power objective?

Last Answer : It declined

Description : Magnifying power of a simple microscope can be increased by ? A. increasing focal length of the lens B. Decreasing focal length of the lens (Answer) C. Lens of large aperture D. lens of short aperture E. None of these

Last Answer : B. Decreasing focal length of the lens (Answer)

Description : A major breakthrough in the studies of cells came with the development of electron microscope. This is because (a) the electron microscope is more powerful than the light microscope as it ... (d) electron beam can pass through thick materials, whereas light microscopy requires thin sections.

Last Answer : (b) the resolving power of the electron microscope is much higher than that of the light microscope

Description : Resolving power is the ability of a microscope to a. Estimate cell size. b. Magnify an image. c. See two close objects as separate. d. Keep objects in focus.

Last Answer : d. Keep objects in focus.

Description : Which of the following scientific instruments has the greatest resolving power? w) electron microscope x) light microscope y) phase-contrast microscope z) centrifuge

Last Answer : ANSWER: W -- ELECTRON MICROSCOPE

Description : Large astronomical telescopes always use as objective (a) Lens (b) Mirror (c) Combination of lenses (d) None of the above

Last Answer : Ans:(a)

Description : My first is a negative greatly in use, By which people begin when they mean to refuse; My second is Fashion, or so called in France, But, like other whims, is the servant of chance. An article always ... it see which goes by, Although many have four sights, and all have one eye.What am I? -Riddles

Last Answer : But-ton.

Description : When you are focusing on a object in which order should the three objective lenses always be used?

Last Answer : Need answer

Description : Two dimensional motion is not always projectile motion . in two -dimensional motion that is not projectile motion , ____ is not accelerating the objective?

Last Answer : Gravity

Description : When measuring the lines of latitude always begin the which represents o degree?

Last Answer : Need answer

Description : If the main objective of the government is to raise revenue, it should tax commodities with (1) high elasticity of demand (2) low elasticity of supply (3) low elasticity of demand (4) high income elasticity of demand

Last Answer : (3) low elasticity of demand Explanation: The Ramsey rule states that commodities with low elasticities of demand should be taxed at higher rates than commodities with high elasticities of demand. ... the Ramsey rule may result in a regressive taxation scheme society may view as inequitable.

Description : Which management concept suggests that low-importance decisions be handled by subordinates, so that managers can focus on high-importance decisions? (a) management by objective ; (b) management by exception ; (c) Participatory management (d) inclusionary management

Last Answer : (b) management by exception ;

Description : If the main objective of the government is to raise revenue, it should tax commodities with (1) high elasticity of demand (2) low elasticity of supply (3) low elasticity of demand (4) high income elasticity of demand

Last Answer : low elasticity of demand

Description : What lens do you use to locate the specimen on a microscope?

Last Answer : Feel Free to Answer

Description : What kind of microscope would you use to view a Golgi apparatus?

Last Answer : You would use an electron microscope to view a Golgi apparatus.

Description : If you wanted to study the surface of a bacterial cell, you would use a. A transmission electron microscope. b. A light microscope with phase-contrast optics. c. A scanning electron microscope. d. A light microscope with dark-field optics.

Last Answer : c. A scanning electron microscope.

Description : If you wanted to study bacterial motility you would most likely use a. A transmission electron microscope. b. A tight microscope with dark-field optics. c. A scanning electron microscope. d. A light microscope with phase-contrast optics.

Last Answer : a. A transmission electron microscope.

Description : One can buy cheap microscope for use of children. The images seen in such microscope have colored edges, why is this so?

Last Answer : Ans. The images in microscope have colored edges because of defects in lenses. Such a defect is known as chromatic aberration. In such a problem, a lens can’t bring all rays of white light to a single point on image. So image is not sharp and has colored edges.

Description : Why would it be advantages to use blue light with compound microscope?

Last Answer : Ans. The limit, to which a microscope can be used to resolve details, depends upon the width of the objective. A wider objective and use of blue light (short wavelength) produces less diffraction and allows more details to be viewed.

Description : Who invented Electron Microscope and what was its use?

Last Answer : Ans: Knoll and Ruska invented Electron Microscope. It is used to know the finer details of the cell  

Description : What are the differences between a microscope and a telescope?

Last Answer : They are both similar in that it’s all about a game of bending light to meet your need using lenses in various configurations. Hope this helps.

Description : How does the foldscope microscope work?

Last Answer : answer:It's uses a ball lens, like the earliest microscopes made by van Leeuwenhoek. Here's how he made the lenses: By placing the middle of a small rod of soda lime glass ... glass spheres then became the lenses of his microscopes, with the smallest spheres providing the highest magnifications.

Description : Have you heard about the Quantum Microscope for living Biology?

Last Answer : answer:I hadn't heard about it, but it sounds interesting. I'm trying to work through a more descriptive article about it now. But I'm not up on my electron states so I'm having to intuit a ... and then you need to decide whether you want to change things and by how much. Pretty cool, though.

Description : How does one go about viewing a snowflake under a microscope?

Last Answer : Best I could find: http://www.its.caltech.edu/~atomic/snowcrystals/watching/watching.htm My googlemancy is a little weak. Are you of school age? I remember receiving a handout about viewing snoflakes, so if you are maybe you can ask about it once classes start.

Description : With the right light can you turn the lens in your eye into a microscope?

Last Answer : I think you turned your eye into a pinhole camera! When using my DSLR as a pinhole, dust on the sensor becomes very crisp, I think a similar thing happened with your eye. Because the light was shining ... opening, you got very crisp shadows of the floaters. I'm going to have to try this now =)

Description : What role does the microscope play in the home?

Last Answer : Looking at awesome bugs.

Description : What would you like to look at under a microscope?

Last Answer : I like to look at prepared slides of organs, and at living microorganisms. My kids love it when we examine pond water. It’s also nice to look at structures such as fly’s eyes, etc which have been properly prepared for viewing. My microscope is out on the table a lot.

Description : Other than electrons, what else can you magnify and view with an electron microscope?

Last Answer : My Paycheck

Description : Name the green dot like structures in some cells observed by a student when a leaf peel was viewed under a microscope. What is this green colour due to? -Biology

Last Answer : The green dot-like structures in some cells observed by a student when a leaf peel is viewed under a microscope are chloroplasts. The green colour is due to the presence of green pigment, chlorophyll.

Description : In a compound microscope, how is the intermediate image? -Do You Know?

Last Answer : answer:

Description : How can one can distinguish a telescope from a microscope? -Do You Know?

Last Answer : answer:

Description : What causes rough endoplasmic reticulum to look “rough” under a microscope?

Last Answer : ribosomes attached on the sides of the RER makes it look rough under the microscope .

Description : Which type of microscope is used to study extremely small things, such as cell structures by passing a beam of electrons through an object?

Last Answer : optical microscope

Description : On which property of electrons does the electron microscope work?

Last Answer : Answer: Wave nature.

Description : What is the magnification of an electron microscope?

Last Answer : Answer: 100000.

Description : Who invented the first microscope ?

Last Answer : The first microscope was invented by Von Leuven Hook.

Description : What is the English of compound microscope ?

Last Answer : English compound mircroscope of compound microscope .

Description : What is the English language of simple microscope ?

Last Answer : English simple microscope.

Description : What is the function of microscope ?

Last Answer : The function of a microscope is to magnify small objects.

Description : What is a microscope ?

Last Answer : An instrument that allows a small object to be magnified many times over is called a microscope.

Description : What is a microscope ?

Last Answer : Microscope is a very important device in the field of biological studies. Only after the invention of the microscope did the cells that make up the organism become known. The light source used in ... based on the source [ 1] . Light microscope Dye ray microscope X-ray microscope Electron microscope