ome spectrophotometers use wavelengths of light in the ultraviolet range. What are wavelengths of light that are in the ultraviolet range?

Q: Why is it important to use standards or to develop a standard curve in spectrophotometry?

A: Spectrophotometry is the analytical technique by which the character of a substance is measured…

Q: Which of the ff. describes the components of a turbidimeter in the correct order? a.) light source…

A: Turbidimeter is the process of scattering or the absorption  of light colliding with solid or…

Q: What is the function of refractive index in microscope

A: The device that is used to visualise tiny objects under high power is known as microscope full stop…

Q: Using a compound microscope, if I move my sample from up to down (), in which direction will the…

A: Answer: COMPOUND MICROSCOPE = It is the type of microscope which is used to magnify the…

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: Objective lens X has a limit of resolution equal to 0.2 mm while objective lens Y has 30 µm. a.…

A: * object lens is the optical element which gathers light from object and focuses light rays to…

Q: Characteristics of Light that can be useful in the medical field includes: 1 Diffraction.…

A: Light is the electromagnetic radiation within the portion of the electromagnetic spectrum that is…

Q: How do coincidence and interference of light rays differ? What type of image does each produce? How…

A: The micro-organism is the organism that is too small to be seen with the naked eye. It is viewed by…

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: Match the following items: [4] 1.     540 nm A.    Wavescan 2.     Quantity of light of a specific…

A: The absorbance of a solution of a biological molecule is determined by Lambert-Beer law. The law…

Q: WHAT ARE THE Steps in spectrophotometer

A: -Spectrophotometer is an optical instrument which is used to measure the concentration of a known…

Q: The relative refractive index of the two media shows: Oa. How many times the speed of light in a…

A: Relative refractive index is change of speed of light while travelling from one medium to another.…

Q: What color of light results from the addition of cyan light and red light? green blue white magenta

A: Green, blue and red are primary colours. When these colours are mixed in different proportions new…

Q: During observation under the microscope, the number of optical planes that are in focus…

A: A microscope is a laboratory instrument that is used to view objects that are too small for the…

Q: Differentiate between the concepts of magnifi cation, refraction, and resolution and explain how…

A: Magnification is the ability of the microorganism to make the tiny objects appear larger and more…

Q: What are the ways you can control the amount of light passing through your specimen? One way is…

A: A specimen is a sample which represents the whole group. The specimen can anything which is a…

Q: Imagine you are using a microscope with 5x eye pieces (instead of 10x like ours). If you change from…

A: given that the initial two magnifications are 5x and 10x , and final magnification is 5x and 40x

Q: What is a Spectrogram

A: Spectrogram is a visual way of viewing the spectrum of frequencies of signal that varies with time.

Q: Which of the following types of photons (packets of pure electromagnetic energy) have the highest…

A: Radiation is both magnetic and electric fields that spread and travels in waves. Electromagnetic…

Q: What are two things that can be done to improve contrast on a microscope?

A: Contrast refers to the darkness of the background relative to the specimen.

Q: how do you think increasing the index of refraction will change the path of the light ?

A: Light rays travel through different medium. During this travel they either get reflected(bouncing of…

Q: What is Spectrocopy? Give 1 example of spectroscopic technique and discuss concepts involved and…

A: Spectroscopy  It is defined as the study of how matter absorbs and emits light and other forms of…

Q: spectrophotometer.

A: Definition:  It is defined as the branch of electromagnetic spectroscopy which is concerned with…

Q: If you travel north from the equator, what generally happens to the intensity of ultraviolet light?

A: The intensity of UV ray coming from sun depends on the angle of elevation. The angle of elevation of…

Q: What are the divisions of white light according to the electromagnetic spectrum? Which are the two…

A: The white light is made up of seven colors spread between the wavelength of 400 nm to 780 nm. This…

Q: What is resolution and how is it related to magnification?

A: The oldest and most common optical instruments like microscopes are used to see small objects…

Q: In the spectrophotometer, why is there a need to measure a 'blank' sample? What will happen to the…

A: A spectrophotometer is one of the most frequent tools used by scientists to determine the presence…

Q: What is an electron micrograph? Why do electron micrographshave greater resolution than light…

A: Microscope helps to observe the organisms or objects that cannot be seen by our naked eye because…

Q: spectrophotometer converts light energy into electrical energy?

A: ANS-1 Option B Explanation- Visible light is the only light our eyes can see. Our eyes detect these…

Q: In the blueprint experiment, what would be the result of not exposing the print to sunlight for a…

A: Introduction Blueprints are created using the cyanotype process, which was invented in 1842 by…

Q: What solution goes into the cuvette when you’re zeroing the spectrophotometer?

A: Spectrophotometer is a device that is used to calculate the absorbance of the light passing through…

Q: You should always position the cells or tissues in the center of view before increasing…

A: It is important to position the cells or tissues in the centre while viewing under a microscope…

Q: What color does an object appear if it absorbs light at both 420-500 nm and at 620-700 nm?   a.…

A: The human eye can detect and is sensitive to visible light in the electromagnetic spectrum. The…

Q: What is the wavelength used for the spectrophotometer? What is the principle of the…

A: Spectrophotometer is formed of two words :- Spectrophoto  means light spectrum while meter mean…

Q: If the total magnification of a microscope is 700X and the ocular lens magnifies by a factor of 10x,…

A: According to the question, the total magnification of a microscope is 700X.…

Q: Assume that you have an “X" solution that you do not know its concentration. But you have other X…

A: The spectrophotometric methods is used to measure the absorbance of a sample by measuring the…

Q: is the reason for using blind tube in spectrophotometric and calorimetric studie

A: A method which is used to  measure how much a chemical substance absorbs light by measuring the…

Q: What is the principle behind a UV-Vis spectrophotometer, and what are its key components, and how…

A: UV-vis spectrophotometry or UV spectroscopy types of absorption spectroscopy or reflectance…

Q: Explain why is absorption used for studying the dyes, while fluorescence is used for studying the…

A: The investigation of various fundamental processes in the subject of life sciences relies on the…

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: In order to get the best resolution possible with a light microscope, you would want: Short…

A: Light microscope :- This is a type of optical microscope, where visible light and lenses are used to…

Q: Define magnification and resolution

A: In biology, i can define the term magnification and resolution on the basis of microscopy.

Q: What is the purpose of setting the spectrophotometer to zero absorbance using a blank solution?

A: Spectroscopy is a procedure utilized for the evaluation, portrayal, and basic investigation of a…

Q: Name the colors in a color spectrum of visible light from low to high wavelength.

A: The visible spectrum is the portion of the electromagnetic spectrum which is visible to the human…

Q: Characteristics of Light that can be useful in the medical field includes: * Diffraction.…

A: Light application techniques in medical field These techniques ate used in medical field for various…

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…

Q: Which of the following has the shortest wavelenght?  A. Radiowave B. infrared  c. visible light  d.…

A: The question asks about the correct option for having the shortest wavelength.A). Radio-waves B).…

Q: How do photopigments separate when performing paper chromatography? Most soluble pigment will stay…

A: Paper chromatography is a technique which is used to separate the mixture by using a moving solvent…