What is a microscope ?

Description : A microscope used in pathological laboratories forms – (1) magnified, virtual, erect, Image (2) diminished, real and erect image (3) Magnified, virtual and inverted image (4) Diminished, virtual and erect image

Last Answer : (3) Magnified, virtual and inverted image Explanation: A microscope is an instrument that produces a clear magnified image of an object viewed through it. A basic microscope is made up of two ... one a viewer sees. The final image is virtual and is inverted compared to the original object.

What is viewed through an electron microscope? (1) Electrons and other elementary particles (2) Structure of bacteria and viruses (3) Inside of human stomach (4) Inside of the human eye

Description : What is viewed through an electron microscope? (1) Electrons and other elementary particles (2) Structure of bacteria and viruses (3) Inside of human stomach (4) Inside of the human eye

Last Answer : (2) Structure of bacteria and viruses Explanation: Electron microscopes are used to observe a wide range of biological and inorganic specimens including microorganisms, cells, large molecules, ... microscope because electrons have wavelengths about 100,000 times shorter than visible light photons.

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.

What is a compound microscope? (1) A microscope that has one lens. (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. (3) A microscope whose lenses are concave. (4) A microscope whose lenses are convex.

Description : What is a compound microscope? (1) A microscope that has one lens. (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. (3) A microscope whose lenses are concave. (4) A microscope whose lenses are convex.

Last Answer : (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. Explanation: A compound microscope is a microscope which uses multiple lenses to collect light from the ... lens provides the primary magnification which is compounded (multiplied) by the ocular lens (eyepiece).

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.

The instrument used to see the distant objects on the Earth is – (1) Terrestrial telescope (2) Astronomical telescope (3) Compound microscope (4) Simple microscope

Description : The instrument used to see the distant objects on the Earth is – (1) Terrestrial telescope (2) Astronomical telescope (3) Compound microscope (4) Simple microscope

Last Answer : (1) Terrestrial telescope Explanation: A telescope assists the eye chiefly in two way by enlarging the visual angle under which a distant object is seen, and thus magnifying that object; ... organ, thus rendering objects distinct and visible which would otherwise be indistinct and or invisible.

Electron microscope was invented by – (1) Knoll and Ruska (2) Robert. Koch (3) Lecuwenhock (4) C.P. Swanson

Description : Electron microscope was invented by – (1) Knoll and Ruska (2) Robert. Koch (3) Lecuwenhock (4) C.P. Swanson

Last Answer : (1) Knoll and Ruska Explanation: It is widely accepted that the first prototype of an electron microscope was built by Ernst Ruska and Max Knoll in 1931; it was not more powerful than an ... . An electron microscope uses a beam of electrons to illuminate a specimen and produce a magnified image.

A simple microscope consists of : (1) a short focus convex lens (2) a long focus convex lens (3) a short focus concave lens (4) a long focus concave lens

Description : A simple microscope consists of : (1) a short focus convex lens (2) a long focus convex lens (3) a short focus concave lens (4) a long focus concave lens

Last Answer : (1) a short focus convex lens Explanation: Simple microscope - light microscope consisting of a short focus single convex lens is used to produce an enlarged image. The magnifying glass was ... object viewed and one lens, increasing the visibility of the object by some amount (magnification).

One can distinguish a telescope from a microscope by observing – (1) length (2) colour (3) size of the lens (4) length and size of the lens

Description : One can distinguish a telescope from a microscope by observing – (1) length (2) colour (3) size of the lens (4) length and size of the lens

Last Answer : (4) length and size of the lens Explanation: Telescope and Microscope are two scientific instruments that serve their purposes differently. One of the main differences between a telescope and a ... the distance from the focal point to the lens is different in these two scientific instruments.

The final image in a simple microscope is – (1) real, diminished and inverted (2) real, magnified and erect (3) virtual, magnified and erect (4) virtual, diminished and erect

Description : The final image in a simple microscope is – (1) real, diminished and inverted (2) real, magnified and erect (3) virtual, magnified and erect (4) virtual, diminished and erect

Last Answer : (3) virtual, magnified and erect Explanation: A basic microscope is made up of two converging lenses. The first lens creates a real image which serves as the object for the second lens, and the ... a viewer sees. The final image is magnified, virtual and is inverted compared to the original object.

What was invented by 'Zacharias Janssen'? (1) Telescope (2) Microscope (3) Stethoscope (4) Periscope

Description : What was invented by 'Zacharias Janssen'? (1) Telescope (2) Microscope (3) Stethoscope (4) Periscope

Last Answer : (2) Microscope Explanation: In Boreel's investigation Johannes also claimed his father, Zacharias Jansen, invented the compound microscope in 1590.

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.

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

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.

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

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.

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

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

What is a compound microscope? (1) A microscope that has one lens. (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. (3) A microscope whose lenses are concave. (4) A microscope whose lenses are convex.

Description : What is a compound microscope? (1) A microscope that has one lens. (2) A microscope that has two sets of lenses : an occular lens and an eyepiece. (3) A microscope whose lenses are concave. (4) A microscope whose lenses are convex.

Last Answer : A microscope that has two sets of lenses : an occular lens and an eyepiece.

The final image in a simple microscope is (1) real, diminished and inverted (2) real, magnified and erect (3) virtual, magnified and erect (4) virtual, diminished and erect

Description : The final image in a simple microscope is (1) real, diminished and inverted (2) real, magnified and erect (3) virtual, magnified and erect (4) virtual, diminished and erect

Last Answer : virtual, magnified and erect

A microscope used in pathological laboratories forms (1) magnified, virtual, erect image (2) diminished, real and erect image (3) magnified, virtual and inverted image (4) diminished, virtual and erect image

Description : A microscope used in pathological laboratories forms (1) magnified, virtual, erect image (2) diminished, real and erect image (3) magnified, virtual and inverted image (4) diminished, virtual and erect image

Last Answer : magnified, virtual and inverted image

One can distinguish a telescope from a microscope by observing (1) length (2) colour (3) size of the lens (4) length and size of the lens

Description : One can distinguish a telescope from a microscope by observing (1) length (2) colour (3) size of the lens (4) length and size of the lens

Last Answer : length and size of the lens

The instrument used to see the distant objects on the Earth is (1) Terrestrial telescope (2) Astronomical telescope (3) Compound microscope (4) Simple microscope

Description : The instrument used to see the distant objects on the Earth is (1) Terrestrial telescope (2) Astronomical telescope (3) Compound microscope (4) Simple microscope

Last Answer : Terrestrial telescope

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

A simple microscope consists of : (1) a short focus convex lens (2) a long focus convex lens (3) a short focus concave lens (4) a long focus concave lens

Description : A simple microscope consists of : (1) a short focus convex lens (2) a long focus convex lens (3) a short focus concave lens (4) a long focus concave lens

Last Answer : a short focus convex lens

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

Electron microscope was invented by (1) Knoll and Ruska (2) Robert Koch (3) Leeuwenhock (4) C.P. Swanson

Description : Electron microscope was invented by (1) Knoll and Ruska (2) Robert Koch (3) Leeuwenhock (4) C.P. Swanson

Last Answer : Knoll and Ruska

What is viewed through an electron microscope? (1) Electrons and other elementary particles (2) Structure of bacteria and viruses (3) Inside of human stomach (4) Inside of the human eye

Description : What is viewed through an electron microscope? (1) Electrons and other elementary particles (2) Structure of bacteria and viruses (3) Inside of human stomach (4) Inside of the human eye

Last Answer : Structure of bacteria and viruses

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.

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 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.

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.

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

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

Last Answer : answer:

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

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

Last Answer : answer:

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

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 .

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

On which property of electrons does the electron microscope work?

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

Last Answer : Answer: Wave nature.

What is the magnification of an electron microscope?

Description : What is the magnification of an electron microscope?

Last Answer : Answer: 100000.

Who invented the first microscope ?

Description : Who invented the first microscope ?

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

What is the English of compound microscope ?

Description : What is the English of compound microscope ?