Q: Explain how to correctly use the microscope using oil immersion.
A: Light tends to bend while entering one material from a different one. The refraction of light…
Q: I have a microscope with oculars that are 20x and am viewing a slide using oculars that are 50x.…
A: Introduction An instrument used to magnify small objects called a microscope. Even at the cellular…
Q: If 5X instead of 10X oculars were used with the same objectives now on your microscope, what…
A: Microscopy means the use of microscope for studying the cells. Microscope is an indispensable…
Q: A researcher was measuring the absorbance of yellow food coloring. What wavelength should he use on…
A: Light is a form of radiant energy, it is a narrow band of energy within the continuous…
Q: Define the terms magnification and resolution.
A: Microscope is an instrument used to see the objects that cannot be seen by naked eye. The use of…
Q: Alternatives used on a light microscope might improve vision by using a different light source. Name…
A: Microscopes are used to observe specimens or samples of a minute size that cannot be observed by the…
Q: What is Audiometer? When is it used?
A: An Audiometer is a subjective device that is used to evaluate the hearing threshold of a person. It…
Q: Which part of the light microscope controls the intensity of light entering the viewing area…
A: Correct answer: Diaphragm
Q: Trace the path of light from the light source through the microscope in the correct order: O…
A: With the help of a microscope, an image of the small objects can be enlarged. In this way, minute…
Q: What’s the total magnification for 5x and 44x in a microscope
A: When the size of the image is compared to that of the object that created the image in the first…
Q: Calculate the diameter of the field of view for each total magnification on your microscope in…
A: Field of view is the area that can be seen under the microscope at one time. There is an inverse…
Q: What is working distance and how is it related to magnification?
A: Working distance is the distance between the object and the front end of the lens. A microscope has…
Q: Explain why an image must be centered in the field of view when using low power before moving to a…
A: Microscopy is the field of biology that deals with viewing objects that are not visible to naked…
Q: Compare AAS, AES and UV-Vis spectrophotometer
A: The most sophisticated spectrophotometers are AAS, AES and UV-vis spectrophotometers. They each have…
Q: Which of the following is true about the relationship between depth of field and magnification?…
A: The depth of field refers to resolution in the longitudinal plane. It is measured as the distance…
Q: How do you identify which objective lens are you using to view your sample?
A: microscope objectives feature a range of magnifications from 1.25x to 150x. This is the first…
Q: Demonstrate how to view an object with the microscope using all magnifications
A: Answer: Introduction: Microscope is defined as an optical instrument consist of optical lenses for…
Q: What is the parts and its functions of fluorescence spectroscopy and uv vis instruments
A: Spectroscopy is the study of the absorption and emission of light and other radiation by matter.
Q: What is the relationship between the working distance of an objective lens and its magnification…
A: Microscope is an optical instrument that uses a lens or an arrangement of lenses to magnify an…
Q: What is the total magnification of a specimen viewed with a 10x ocular lens and a 45x objective…
A: The correct ans is 450X. The total magnification of specimen viewed with a 10x ocular lens and 45x…
Q: When using the 40X objective, the total magnification is
A: The total magnification of microscope must be calculated by multiplying the magnification of eye…
Q: If a microscope ocular lens has a power of 10x and the objective lens has a power of 20x then the…
A: Introduction: For imaging, optical microscopes combine ocular and objective lenses (eyepieces). The…
Q: Enumerate the different kinds of blanks used in spectrophotometry
A: Introduction : Spectrophotometry is a method used to analyse molecules quantitatively based on how…
Q: If you are using a microscope and a specimen takes up 1/4 of the field of vview at 1000X, what is…
A: Magnification = 1000X Specimen takes 1/4 of the field of view.
Q: Why don’t most light microscopes use 303 ocular lenses for greater magnification?
A: The ‘human eye’ is the most valuable and sensitive sense organ. It is a natural optical instrument.…
Q: Calculate the diameter of the field of view for each total magnification on your microscope in…
A: Field of view (FOV) is the diameter of the circle of light that can be seen while looking into the…
Q: Describe the process of bringing a specimen into focus using a compound light microscope.
A: A microscope is an instrument that can magnify specimen which is otherwise too small to be seen,…
Q: How can one obtain 2,000× magnification with a 100× objective?
A: Magnification means how many times the image is larger than the object.
Q: When using the 10x lens to view a specimen, what is the total magnification of the specimen to the…
A: When using the 10x lens to view a specimen, what is the total magnification of the specimen to the…
Q: What is the main application of Atomic absorption spectrophotometer (AAS)?
A: The Atomic Absorption Spectrophotometer (AAS) is primarily used to quantify the presence of several…
Q: What do you mean by Auxanometer?
A: The process of plant development can be easily studied by the activity of the meristem. The…
Q: Give two applications of Spectrophotometric analysis and briefly explain each
A: The spectrophotometer is an instrument that uses an electromagnetic spectrum. This instrument is…
Q: Provide an illustration and brief description of the pathway of light in relation to magnification…
A: Introduction :- A microscope is a device that magnifies images of small objects, allowing the…
Q: What is the diameter of the field of view (ie. Diameter2) when the total magnification is 100X?…
A: Field of View is the diameter of the circle of light visible through the microscopic lenses.
Q: Discuss if visual observations match with spectrophotometric analysis results.
A:
Q: Describe how you would use a compound light microscope with the 4 objective lenses to view a…
A: A compound microscope is a microscope with more than one lens and its light source. In this type of…
Q: What major advantage does phase-contrast microscopy haveover staining?
A: Phase-contrast microscopy is an optical microscopy technique used in cells. When the light passes…
Q: Total magnification of a specimen using the high objective and the ocular lens is
A: B) 40Ox 400 x is the typical magnification of an ocular lens.
Q: At what magnification you can see the largest area on your slide? 2. At what magnification you can…
A: Microscopes are used for viewing those specimens which are very minute and cannot be seen through…
Q: Which spectrophotometer mode should you use to calibrate the instrument and which mode should you…
A: Spectrophotometer is an optical instrument that is used to measure the light intensity relative to…
Q: Why did we calculate, rather than measure, the diameter of the field of view on medium and high…
A: A microscope is an instrument used to visualize objects that are extremely small in size and cannot…
Q: What is the differences between ocular magnification and objective magnification?
A: Introduction A microscope's objective lens is the one near the sample at the bottom. It's an…
Q: Which power (low or high) will magnify the object more?
A: Microscopes are used for viewing objects that are small to see via eye clearly without…
Q: In a tabular form, enumerate the different components of a spectrophotometer and explain its…
A: A spectrophotometer is an analytical equipment that is used to measure the absorbance of light by…
Q: Rowena was tasked to measure the actual magnification of her specimen mounted on a slide without…
A: A microscope is a piece of scientific equipment which magnifies very small objects that are too…
Q: While using a microscope, when do you use immersion oil? a. When viewing a slide under the 100x…
A: INTRODUCTION When viewing stained smears under 100x we use immersion oil. That can increase…
Q: Define magnification and resolution
A: In biology, i can define the term magnification and resolution on the basis of microscopy.
Q: Provide a list of the names of the devices and technologies used in Dynamic Light Scattering applied…
A: Dynamic Light Scattering (DLS) employs a measurement method to identify the particle size in…
Q: what is experimental error that may occur when reading spectrophotmeter
A: Spectrophotometry is a technique for determining how much light a chemical substance receives by…
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
- Question 39 The conformational change of retinal, from the cis to trans configuration, indirectly: Hyperpolarizes the photoreceptor by closing Na+ channels. Hyperpolarizes the photoreceptor by opening Na+ channels. Depolarizes the photoreceptor by opening Na+ channels. Depolarizes the photoreceptor by closing Na+ channels. Question 40 If a skeletal muscle is no longer able to make enough ATP, then: O There will be low levels of acetylcholine at the motor endplate.QUESTION 8 Which of the following is not true about electromagnetic radiation? O frequency is directly proportional to wavelength O frequency is directly proportional to energy O frequency is inversely proportional to wavelength O wavelength is inversely proportional to energy O frequency and wavelength are not related QUESTION 9Question 4 All of the following are true about eyes EXCEPT Each cone cell attaches to one connecting neuron, thus giving the brain fine detail O Cones allow us to see color O light hits cones directly without other cells in the way but rods are blocked by other cells we have the most cones at the very back of the eye in the fovea region Question 5 1 The rods and cones in our eyes have special proteins embedded in their membranes which hold light- reacting molecular units. In rods the unit is called which is a modified form of Vitamin A. O carotene O codeine O carnassial O retinal
- Question in Image, all one part! Thank you!Question 6 Why do you use immersion oil with 100X objective lens? to increase image resolution to lubricate the objective lens O to make the light brighter to increase focusQUESTION 2 To establish a standard curve for a BSA standard curve using Bradford, the spectrophotometer wavelength is set on which value? O the wavelength at which the BSA-Bradford complex's absorption value is the highest O the highest wavelength possible O the wavelength at which the BSA-Bradford complex's absorption value the lowest O the wavelength at which the Bradford's absorption value is the highest the wavelength at which the Bradford's absorption value is the lowest O the lowest wavelength possible
- QUESTION 12 Which of the following are units for wavenumber in IR spectroscopy? Cm 1 cm O Js1 O mm O J-sO frequency and wavelength are not related QUESTION 9 Arrange the following electromagnatic radiation in decreasing (nighest to lowest) order of frequency UV V. microwave X rays visible IR II II IV O V> III > IV > || > | O Il >V> III> IV>I O I> IV> II >V>I| O V> II > IV> III > I QUESTION 10184 Chapter 15 No melanin in the front part of the iris. The color is due to minimal amounts of melanin in the rear of the iris with the clear front portion scattering light reflected off the melanin. This scattering is greatest in the blue spectrum giving the iris its blue color. Blue: Various Eye Colors The same as blue, but with a slight amount of melanin in the front of the iris which tones down, or greys, the blue reflected Grey: from behind. A bit more melanin particles scattered in the front part of the iris create yellow. Blended with the light blue from the rear of the iris, it produces an overall Green: green color. Even more melanin particles in the front of the iris give a slight brown color, and dilute melanin particles scattered throughout the iris add some yellow. Hazel: Brown: Melanin particles in the front part of the iris and throughout the iris. The amount of melanin varies, leading to gradations of brown color in the eye. Black: Large amounts of melanin in front and…
- This question is based on Bovine Serum Albumin I would like help on answering letters a-c. This lab examines the relationship between the absorbance of light by a solution at 595 nm and the concentration of the Coomassie Blue dye-BSA protein complex in the solution. State whether the following descriptions of the lab experiment are valid or not, and explain why you say Yes or No: a. The experiment would be significantly more accurate if absorbance readings were recorded for a range of wavelengths, not just for 595 nm b. The experiment has limited accuracy because it does not account for the absorbance of light by the other components (components that are not the dye-protein complex, such as excess dye that is not bound to any protein) of the solution. c. The absorbance reading measures practically all the protein content in the solutionsSuppose you conduct direct visible spectrophotometry with red fruit punch as your solution. Which wavelengths of light would you expect to be strongly absorbed? Which wavelengths are not strongly absorbed? Explain.Consider a bi convex lens with radius of curvatures |R1| = 30 mm and |R2| = 180 mm, ct = 5 mm and glass is N-BK7. This is used as camera lens in order to image a man who is at 1 km away from the camera. We want to resolve 10 cm on his body. Assume that λ = 550 nm. Using zemax, determine the MTF value for the resolution of R = 80 lp / mm in image plane which is placed at paraxial focus. (Hint: First, find the diameter of the lens) Which one: a.32.1 % b.28.7 % c.12.3 % d.58.5 % e.46.8 % f.57.2 % g.20.9 % h.15.6 %