Q: Name one defect of vision which cannot be corrected by any type of spectacle lenses?
A: The eye is a complex organ that provides vision with the help of accessory organs (lacrimal…
Q: What is the function of the nosepiece? holds the eyepiece lens you look through source of light…
A: The nosepiece of the microscope is a rotating turret that houses the objective lenses. The viewer…
Q: The most useful adjustment for increasing image contrast in lowpower magnification is a. closing…
A: The micro-organism is the organism that is too small to be seen with the naked eye. It is viewed by…
Q: Explain how the images are formed, along with the role of light andthe different powers of lenses.
A: The light microscopes or optical microscopes use visible light and a collection of lenses to magnify…
Q: Which objective is never used with the course focus adjustment knob?
A: Microscope is an instrument used to see the smaller size objects using combination of objective and…
Q: what happens to the field of view as magnification is increased useing shccdssively higher power…
A:
Q: Give technical term for eye lens loosing flexibility resulting in kind of long sightedness in…
A: Long-sightedness is a condition in which a person is not able to see nearby objects. The distant…
Q: II. Complete the following table: LENS N.A. MAGNIFICATION TOTAL MAGNIFICATION Eyepiece 10X Scanning…
A: Microscopy is the field of science that deals with the study of objects with the help of…
Q: OIL EMERSION IS REQUIRED FOR which lens
A: Oil immersion is a technique which is used to increase the resolving power of a microscope. A light…
Q: Why do you use immersion oil with 100X objective lens? O to increase image resolution O to lubricate…
A: Light bends when it passes from one medium to another. When light passes through the glass lens and…
Q: Discuss the optics of imaging the source onto the retina.
A: The retina is a thin layer of tissue that surrounds the back of the eye on the interior. It is…
Q: Match the objective lenses with permissible behaviors: For some rows you’ll list more than 1…
A: Adjust focus using coarse adjustment knob- A.4X Adjust focus using the fine adjustment knob-B.10x
Q: At what objective magnifications is it not OK to use the course focus adjustment? O A) 4X and 10X B)…
A: Microscope is an optical instrument which is used to enlarge and view microscopic objects.…
Q: What is the significance of using oil with the immersion lens and why can't oil be used with any…
A: An instrument that is used to see extremely small objects that cannot be seen by naked eyes is…
Q: Which objective lens has the least working distance?
A: In microscopy, the working distance can be defined as the distance between the front lens of the…
Q: Explain the low-angle rotary shadowing.
A: Rotary Shadowing : It allows high contrast visualization of of both individual macromolecules and…
Q: To alter the amount of light coming through the stage you should adjust the: iris diaphragm O coarse…
A: Effective illumination in a microscope is required for efficient magnification and resolving power.
Q: "A" refers to the OA. O A. pupil. O B. iris. O C. lens. O D. retina. OE. none of the above.
A: Our eyes are sensory organs for vision. They are help in perception of colour. Human beings has two…
Q: What is the relationship between the diopter number that show up on opthalmoscope when one is…
A: Scientific notations are used in writing medical reports including an eye check-up report that an…
Q: 1. What is the difference between a zoom knob and focus knob? 2. What is another name for the ocular…
A: A microscope is a scientific tool that is used to look at items that are very tiny to view with the…
Q: The size of the pupil is controlled by the O lens
A: The eye is the sensory organ that allows us to see. The eyes achieve vision with the help of visual…
Q: What is the primary difference between the method of focusing used by the eye and by a camera?…
A: Eye is a magnificent natural living organ that records the image whereas camera is also an…
Q: The least distance of distinct vision for an eye lens is caused by the action of the:(a) 25 m(b) 2.5…
A: Least distance of distinct vision is defined as the minimum distance of a object from eye to form…
Q: Why is it necessary to use oil in conjunction with the oil immersion lens and not with the other…
A: Oil immersion is a technique in light microscope used to increase the resolving power of a…
Q: To alter the amount of light coming through the stage someone should adjust the: Group of answer…
A: Microscope stage Microscope stage is the place where object to be seen is putted.
Q: Explain the Workings of an oil immersion lens.
A: Oil immersion lens: A type of objective lens that can focus when there is a drop of liquid (such as…
Q: What does the objective lens magnify
A: There are two types of lenses- 1. Objective lens- The lens near the specimen is called the objective…
Q: choose one of the vision problems that can be corrected by LASIK.
A: LASIK is a surgical process in which the surgeon modifies the tissue shape present in front of the…
Q: Which lens requires the use of cedarwood oil? Why is it important to use oil when focusing under…
A: Microscopes are important instrument which allow the enlargement of image produced by object when…
Q: A good way to increase the depth of focus on a slide is to: O Increase the magnification Decrease…
A: Microscope is an instrument used to view the small size objects because it magnify the image.
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 happens to your image if you try to magnify it using 40x or 100x?
A: The microscope is the instrument used for magnifying or the enlargement of the object to be…
Q: The pupil of a person's eye changes from a diameter of 3.5 mm to 1.5 mm as the illumination is…
A: During dim light, the size of the pupil expands so that more light enters our eye and it helps to…
Q: ? which device is used for refraction A direct ophthalmoscope .B retinoscope .C slitlamp .D…
A: According to the question, we have to find out which of the following device is used for refraction.…
Q: Match the following steps with the order in which they should occur when using a stereomicroscope.…
A: Compound and stereo microscopy are the two most common types of microscopes. Stereo microscopes have…
Q: While viewing an object under low power you see a small organism at the edge of the field of vision.…
A: Step 1 Microscopes are the instrument used for observing smaller objects as well as finer internal…
Q: What do you think would happen if you tried to view a slide using the oil immersion lens but forgot…
A: Q. What do you think would happen if you tried to view a slide using the oil immersion lens but…
Q: The coarse and fine focus knobs adjust the distance betweena. the objective and ocular lenses.b. the…
A: A magnifying lens is an instrument that amplifies an item so it might be seen by the spectator.…
Q: Give the resolution of eyepiece, scanning objective, LPO, HPO and OIO
A: Resolution: The lowest distance at which two distinct points of a specimen can still be viewed as…
Q: The human eye is much like a camera—yet, when a camerashutter is left open and the camera is moved,…
A: All of the light entering into the lens of the camera while shutter is open contributes to a single…
Q: Which of the following is NOT used to adjust the intensity of light? Question 1 options: iris…
A:
Q: What was needed after you use the 100 x lens? O use Chemwipe to clean the lens O use water to clean…
A: We use oil while using a 100X lens to reduce refraction.
Q: Why must the angle of astigmatism be determined before the corrective power of the lenses ? the…
A:
Q: The purpose of the ocular lens is to O increase the light. magnify the image from the objective…
A: Introduction :- An eyepiece, also known as an ocular lens, is a type of lens used in optical…
Q: what happens to brightness of the field of view when you switch to the high power objective
A: MAGNIFICATION It is the process of enlarging the apparent size of an object. This property of…
Q: 2. Calculate the field of views using the given information: A.Scanning power objective= 5x; low…
A: Meaning of field of view is how much the object or specimen we will be able to see through the…
Q: 1.4. Functions of the light mlcroscope parts Complete the following table by writing the function(s)…
A: Function: Diaphragm/iris: Adjusts the amount of light that reaches the specimen. Stage opening:…
Q: Why is it important to use immersion oil when using the 100X objective? What do you think would…
A: Answer: MICROSCOPE = It is the instrument used to magnify the smaller objects to make them enlarge.…
Q: How can you compare various parts of eye with a photographic camera?
A: The eye of a human and camera are similar in their mechanism. Both of these are involved in…
Q: Can you use the fine adjustment knob so that you can focus on all three threads simultaneously when…
A: Any object has depth, length, and width, but a microscope can focus and provide only a…
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Solved in 2 steps
- Which lens requires the use of cedarwood oil? Why is it important to use oil when focusing under this lens?How can you improve contrast when viewing a specimen?. What should you do if you have difficulty focusing in high power?. Why is important to use the fine adjustment nob only when focusing while using the high dry objective lens?What is the magnification power of the objective lenses? How does the eyepiece compare to the objective lens? What is a magnification power? Differentiate between the fine and the coarse adjustment knobs.
- what happens to brightness of the field of view when you switch to the high power objectiveWhy must the angle of astigmatism be determined before the corrective power of the lenses ? the corrective power is determined first , it will be difficult to determine which are blurry the corrective power is determined first , will look blurry If the corrective power is determined first , all lines will look clear .Which objective lens has the least working distance?
- Why is it advisable to start first with the low-power lens when viewing a slide?The coarse and fine focus knobs adjust the distance betweena. the objective and ocular lenses.b. the ocular lenses.c. the ocular lenses and your eyes.d. the stage and the condenser lens.e. the stage and the objective lens.OIL EMERSION IS REQUIRED FOR which lens
- What do you think would happen if you tried to view a slide using the oil immersion lens but forgot to add the oil?f I use the 10x eyepiece and the 40x objective, what is the magnification? Select one: 4 diameters 40 diameters 4000 diameters 400 diametersWhat is the function of the nosepiece? holds the eyepiece lens you look through source of light secures the slide on the stage holds the objective lenses