1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vagabundo [1.1K]
3 years ago
10

When would a scientist use an oil immersion lens?

Biology
2 answers:
Slav-nsk [51]3 years ago
7 0

En microscopía óptica, la inmersión (generalmente en aceite, aunque también se puede efectuar en agua o con medios sólidos) es una técnica utilizada para aumentar el poder de resolución de un microscopio. Esto se consigue mediante la immersión en un aceite transparente de alto índice refractivo tanto de la lente del objetivo como del espécimen a observar, aumentando así la apertura numérica de la lente del objetivo.

Los aceites de inmersión son sustancias transparentes con las propiedades ópticas y las características de viscosidad necesarias para su uso en microscopía. Los aceites típicos utilizados suelen tener un índice de refracción de alrededor de 1,515.1​ Un objetivo de inmersión es una lente especialmente diseñada para ser utilizada de este modo. Muchas lentes condensadoras también proporcionan una resolución óptima cuándo están inmersas en aceite.

El primero en desarrollar está técnica a mediados del siglo XIX fue el óptico italiano Giovanni Battista Amici (1786-1863).

Grace [21]3 years ago
6 0
When light passes from a material of one refractive index to another (for example: from glass to air), it bends.
You might be interested in
What strategy can prevent cross-contamination?
mario62 [17]
<span><span>Implement a personal hygiene program. To lessen the possibility of food handlers contaminating food, institute a good personal hygiene program that includes policies addressing critical hand practices like proper handwashing, hand care and glove use. Also address staff cleanliness and work attire, focusing on topics such as bathing, clean clothing, the proper use of hair restraints and prohibited jewelry. Finally, policies should be put in place to make sure food handlers come to work healthy. Include actions such as reporting illnesses and covering wounds.</span><span>Remind employees to wash their hands. This is especially important after using the restroom and after handling raw meat, seafood and poultry. Once employees have washed their hands, ensure they use a single-use paper towel or hand dryer, rather than any part of their uniform, to dry. </span><span>Use separate equipment. Each type of food should be prepped and handled with a separate piece of equipment. For example, use one set of cutting boards, utensils and containers for raw poultry. Use another set for raw meat, and use a third set for produce. Some operations use colored cutting boards and utensil handles to help keep equipment separate. If this system is not possible at your restaurant, prep food at different times.</span><span>Clean and sanitize all work surfaces. All work surfaces, equipment and utensils should be cleaned and sanitized after each task. Simply rinsing equipment is not enough to eliminate pathogens that can contaminate food. </span><span>Purchase prepared food. You can prevent cross-contamination by purchasing food that doesn’t require much prepping. This minimizes handling and can reduce the transfer of pathogens from one surface or food to another.
</span></span>
3 0
3 years ago
Name the process by which sugar moves into cell A.
andre [41]

Answer:

need picture brahj, but I got u, when it moves from high concentration to an area of low concentration, a process called diffusion. its process of moving glucose across the cell membrane is called facilitated diffusion.

Explanation:

3 0
3 years ago
I need help on #16 please
kotykmax [81]

B I think because it would have to be 25% so then Aa would be appropriate as of it's recessive.

8 0
3 years ago
Question 3 options:
torisob [31]

Answer:

dog and kangaroo

Explanation:

this is the only logical answer ~\_(8-8)_/~  

:)

5 0
2 years ago
What is used for building structures in the body they can also be enzymes?
Anna35 [415]

Answer:

The correct answer is - proteins.

Explanation:

Enzymes are made up of the long chains of amino acids that are linked by the peptide bonds that make a polypeptide chain known as proteins. Proteins are the building block of the enzyme and the building of thevarious structures in the body.

Enzymes are made up of two protein that also plays as the role of a biological catalyst whereas protein only plays role in forming different structure and performing functions.

6 0
3 years ago
Other questions:
  • 12 = -4(-6x – 3) wht is it <br>​
    6·2 answers
  • Energy produced from material that comes with living organisms is known as
    13·2 answers
  • In humans, excess blood glucose is stored in the liver and in muscle tissue in the form of glycogen. Glycogen is a long chain of
    9·2 answers
  • Can environmental factors affect the coding of genes?
    9·1 answer
  • Hydrogen fuel still results in pollution because _____. hydrogen is converted into carbon dioxide electricity is required to pro
    15·2 answers
  • So whats the answer a b c or d
    6·1 answer
  • 2. If nearly 79% of the atmosphere is made of nitrogen, how could there be a shortage of nitrogen in soil?
    7·1 answer
  • Put these terms in order of hierarchical organization (smallest to largest):
    8·1 answer
  • ______found evidence that the continents were joined together at one time.
    10·1 answer
  • A student builds a model of a DNA strand.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!