What part of Microscope part that concentrates light on the object?

What part of Microscope part that concentrates light on the object?
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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

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

Which of the following statement(s) is/are true concerning the management of a patient with hemophilia A undergoing an elective surgical operation? a. Concentrates of factor VIII should be given several days prior to elective surgery b. The half-life of factor VIII concentrates is less than 24 hours c. A dose of 40–50 IU/kg of factor VIII concentrate should be given prior to the planned surgical procedure d. Factor VIII concentration administration should be given for the first 24 hours after surgery but may then be stopped if no abnormal bleeding has been observed e. A new recombinant preparation of factor VIII offers the advantage of being virus-free

Description : Which of the following statement(s) is/are true concerning the management of a patient with hemophilia A undergoing an elective surgical operation? a. Concentrates of factor VIII should be given ... observed e. A new recombinant preparation of factor VIII offers the advantage of being virus-free

Last Answer : Answer: b, c, e Although the half-life of factor VIII is 2.9 days in normal individuals, the half-life of factor VIII concentrates is 9 to l8 hours. Levels of 80% to ... infection in the hemophilia population. A new recombinant preparation of factor VIII offers the advantage of being virus-free

_____ of an antenna is a measure of how the antenna concentrates its radiated power in a given direction. A. Efficiency B. Power C. Gain D. Polarization

Description : _____ of an antenna is a measure of how the antenna concentrates its radiated power in a given direction. A. Efficiency B. Power C. Gain D. Polarization

Last Answer : C. Gain

Which of the following best describes the operational audit? a. It requires the constant review by internal auditors of the administrative controls as they relate to operations othe company. b. It concentrates on implementing financial and accounting control in a newly organized company. c. It concentrates on seeking out aspects of operations in which waste would be reduced by the introduction of controls. d. It attempts and is designed to verify the fair presentation of a company's results of operations.f

Description : Which of the following best describes the operational audit? a. It requires the constant review by internal auditors of the administrative controls as they relate to operations ofthe company. b. It ... attempts and is designed to verify the fair presentation of a company's results of operations.

Last Answer : It concentrates on seeking out aspects of operations in which waste would be reduced by the introduction of controls

India and __________ signed a long-term contract supply of uranium ore concentrates to widen its source base for the nuclear fuel: (a) Canada (b) USA (c) Uzbekistan (d) None of These

Description : India and __________ signed a long-term contract supply of uranium ore concentrates to widen its source base for the nuclear fuel: (a) Canada (b) USA (c) Uzbekistan (d) None of These

Last Answer : Uzbekistan

The location where the bacterial chromosome concentrates is called A- nucleusB- nuclein C- nucleoid D- nucleose

Description : The location where the bacterial chromosome concentrates is called A- nucleus B- nuclein C- nucleoid D- nucleose

Last Answer : nucleoid

A service that concentrates on hardware follows the _________ as a Service model. a) IaaS b) CaaS c) PaaS d) All of the mentioned

Description : A service that concentrates on hardware follows the _________ as a Service model. a) IaaS b) CaaS c) PaaS d) All of the mentioned

Last Answer : IaaS

A service that concentrates on hardware follows the _________ as a Service model. a) IaaS b) CaaS c) PaaS d) All of the mentioned

Description : A service that concentrates on hardware follows the _________ as a Service model. a) IaaS b) CaaS c) PaaS d) All of the mentioned

Last Answer : IaaS

A service that concentrates on hardware follows the _________ as a Service model. a) IaaS b) CaaS c) PaaS d) All of the mentioned

Description : A service that concentrates on hardware follows the _________ as a Service model. a) IaaS b) CaaS c) PaaS d) All of the mentioned

Last Answer : IaaS

The following describe the strategy of Differentiation with Product Lifecycle Focus, except: a. develops an R&D competency to keep designs fresh and exciting. b. concentrates on the High End, Traditional and Low End segments. c. prices are below average. d. products maintains pace with the market. e. capacity is expanded as demand is increased.

Description : The following describe the strategy of Differentiation with Product Lifecycle Focus, except: a. develops an R&D competency to keep designs fresh and exciting. b. concentrates on the High End, Traditional ... . products maintains pace with the market. e. capacity is expanded as demand is increased.

Last Answer : c. prices are below average.

The WTO concentrates on a. Goods b. Services c. Goods & Services d. None of the above

Description : The WTO concentrates on a. Goods b. Services c. Goods & Services d. None of the above

Last Answer : c. Goods & Services

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

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

How many times a simple microscope can magnify the object?

Description : How many times a simple microscope can magnify the object?

Last Answer : Need answer

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

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

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

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 =)

What is the drawback of a light microscope?

Description : What is the drawback of a light microscope?

Last Answer : Need answer

When observing the fungus under the light microscope the stundent stated that chloroplasts were present.do you think that the student observation was correct?

Description : When observing the fungus under the light microscope the stundent stated that chloroplasts were present.do you think that the student observation was correct?

Last Answer : The student's observation was not correct: fungi have nochloroplasts, plants do.

What is the magnification limit of a compound light microscope?

Description : What is the magnification limit of a compound light microscope?

Last Answer : Feel Free to Answer

Do blue lights give better resolution than white light on a microscope?

Description : Do blue lights give better resolution than white light on a microscope?

Last Answer : Feel Free to Answer

What is the difference between a Light Microscopes and an Electron Microscope?

Description : What is the difference between a Light Microscopes and an Electron Microscope?

Last Answer : The optical microscope is the most common. It uses light to image a sample that is too small to be seen by the naked eye.The scanning electron microscope examines the surface of objects using an electron beam and measuring reflection.Short Answer = Resolution.

What is the difference between how a light microscope magnifies an image and how an electron microscope magnifies an image?

Description : What is the difference between how a light microscope magnifies an image and how an electron microscope magnifies an image?

Last Answer : What is the answer ?

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?

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.

What is the difference between a Light Microscopes and an Electron Microscope?

Description : What is the difference between a Light Microscopes and an Electron Microscope?

Last Answer : The optical microscope is the most common. It uses light to image a sample that is too small to be seen by the naked eye.The scanning electron microscope examines the surface of objects using an electron beam and measuring reflection.Short Answer = Resolution.

An electron microscope gives higher magnification than an optical microscope, because: (1) It uses more powerful lenses (2) the velocity of electron is smaller than that of visible (3) the electrons have more energy than the light particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light

Description : An electron microscope gives higher magnification than an optical microscope, because: (1) It uses more powerful lenses (2) the velocity of electron is smaller than that of visible (3) the ... particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light

Last Answer : (4) the wavelength of electrons is smaller as compared to the wavelength of visible light Explanation: An electron microscope uses a beam of electrons to illuminate a specimen and produce a ... photons. Magnification is the process of enlarging something only in appearance, not in physical size.

An electron microscope gives higher magnifications than an optical microscope because – (1) The velocity of electrons is smaller than that of light (2) The wavelength of electrons is smaller as compared to the wavelength of visible light (3) The electrons have more energy than the light particulars (4) The electron microscope uses more powerful lenses

Description : An electron microscope gives higher magnifications than an optical microscope because - (1) The velocity of electrons is smaller than that of light (2) The wavelength of electrons is smaller as ... have more energy than the light particulars (4) The electron microscope uses more powerful lenses

Last Answer : (2) The wavelength of electrons is smaller as compared to the wavelength of visible light Explanation: An electron microscope is a microscope that uses a beam of accelerated electrons as a spume ... a higher resolving power than a light microscope and can reveal the structure of smaller objects.

Which one of the following instruments is used to study dispersion of light? (1) Microscope (2) Telescope (3) Spectrometer (4) Photometer

Description : Which one of the following instruments is used to study dispersion of light? (1) Microscope (2) Telescope (3) Spectrometer (4) Photometer

Last Answer : (3) Spectrometer Explanation: Dispersion occurs when different frequencies of light have different phase velocities, due either to material properties (material dispersion) or to the geometry ... portion of the electromagnetic spectrum, typically used in spectroscopic analysis to identify materials.

Electron Microscope is more magnifier than light microscope because –

Description : Electron Microscope is more magnifier than light microscope because –

Last Answer : Wavelength of electron is less than the wavelength of light

Describe the parts and function of light microscope?

Description : Describe the parts and function of light microscope? 

Last Answer : Microscope is an instrument which is used to see small things that cannot see with naked eyes. The microscopes we use in our school are light microscope Parts  The Eyepiece Tubes  The Microscope Arm ... small for the naked eye to see.  With help of microscope we study cell and its structure

Nucleotide arrangement in DNA can be seen by (a) X-ray crystallography (b) electron microscope (c) ultracentrifuge (d) light microscope

Description : Nucleotide arrangement in DNA can be seen by (a) X-ray crystallography (b) electron microscope (c) ultracentrifuge (d) light microscope

Last Answer : (a) X-ray crystallography

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.

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

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 uses a beam of electrons which has wavelength much longer than that of photons (b) the resolving power of the electron microscope is much higher than that of the light microscope (c) the resolving power of the electron microscope is 200 - 350 nm as compared to 0.1 - 0.2 nm for the light microscope (d) electron beam can pass through thick materials, whereas light microscopy requires thin sections.

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

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.

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.

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.

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.

Before bacterial cells are simple stained and observed with the light microscope, they must be a. Smeared on a slide. b. Heat fixed. c. Air dried. d. All the above (A—C) are correct.

Description : Before bacterial cells are simple stained and observed with the light microscope, they must be a. Smeared on a slide. b. Heat fixed. c. Air dried. d. All the above (A—C) are correct.

Last Answer : d. All the above (A—C) are correct.

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

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.

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

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

Resolution by any microscope is ULTIMATELY limited by the: a) curvature of the lenses b) wavelength of the light c) light intensity d) lens aberrations

Description : Resolution by any microscope is ULTIMATELY limited by the: a) curvature of the lenses b) wavelength of the light c) light intensity d) lens aberrations

Last Answer : ANSWER: B -- WAVELENGTH OF THE LIGHT

An electron microscope gives higher magnifications than an optical microscope because : (1) The velocity of electrons is smaller than that of light (2) The wavelength of electrons is smaller as compared to the wavelength of visible light (3) The electrons have more energy than the light particulars (4) The electron microscope uses more powerful lenses

Description : An electron microscope gives higher magnifications than an optical microscope because : (1) The velocity of electrons is smaller than that of light (2) The wavelength of electrons is smaller as ... have more energy than the light particulars (4) The electron microscope uses more powerful lenses 

Last Answer : The wavelength of electrons is smaller as compared to the wavelength of visible light

Which one of the following instruments is used to study dispersion of light ? (1) Microscope (2) Telescope (3) Spectrometer (4) Photometer

Description : Which one of the following instruments is used to study dispersion of light ? (1) Microscope (2) Telescope (3) Spectrometer (4) Photometer

Last Answer : Spectrometer

An electron microscope gives higher magnification than an optical microscope, because : (1) it uses more powerful lenses (2) the velocity of electron is smaller than that of visible light (3) the electrons have more energy than the light particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light

Description : An electron microscope gives higher magnification than an optical microscope, because : (1) it uses more powerful lenses (2) the velocity of electron is smaller than that of visible light (3) ... particles (4) the wavelength of electrons is smaller as compared to the wavelength of visible light

Last Answer : the wavelength of electrons is smaller as compared to the wavelength of visible light

What part of the microscope holds and moves the slides?

Description : What part of the microscope holds and moves the slides?

Last Answer : The Stage.

What are the differences between a microscope and a telescope?

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.

How does the foldscope microscope work?

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.

Have you heard about the Quantum Microscope for living Biology?

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.

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

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.

Are Objective lenses standardized? [microscope]?

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.

What role does the microscope play in the home?

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

Last Answer : Looking at awesome bugs.

What would you like to look at under a microscope?

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.

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

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

Last Answer : My Paycheck

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

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.