What is the most suitable unit for expressing nuclear radius? ?->(Show Answer!)

1. What is the most suitable unit for expressing nuclear radius?

Answer: Fermi

Reply

Comments

Tags

Show Similar Question And Answers

QA->What is the most suitable unit for expressing nuclear radius?....

QA->What is a suitable unit for expressing electric field strength?....

QA->According to the nuclear pact signed between France and India on December 5, 2010, France will construct two 1650 MW nuclear power reactors in India. The nuclear reactors are to be constructed in which Indian state?....

QA->India"s indigenously developed 20th nuclear reactor became operational in the southern state of Karnataka on 27th November 2010, making it the sixth country in the world to have over 20 nuclear power plants in operation. Where is that nuclear power plant located in Karnataka?....

QA->Which is the most suitable soil for the cultivation of cotton?....

MCQ-> The membrane-bound nucleus is the most prominent feature of the eukaryotic cell. Schleiden and Schwann, when setting forth the cell doctrine in the 1830s, considered that it had a central role in growth and development. Their belief has been fully supported even though they had only vague notions as to what that role might be, and how the role was to be expressed in some cellular action. The membraneless nuclear area of the prokaryotic cell, with its tangle of fine threads, is now known to play a similar role.Some cells, like the sieve tubes of vascular plants and the red blood cells of mammals, do not possess nuclei during the greater part of their existence, although they had nuclei when in a less differentiated state. Such cells can no longer divide and their life span is limited Other cells are regularly multinucleate. Some, like the cells of striated muscles or the latex vessels of higher plants, become so through cell fusion. Some, like the unicellular protozoan paramecium, are normally binucleate, one of the nuclei serving as a source of hereditary information for the next generation, the other governing the day-to-day metabolic activities of the cell. Still other organisms, such as some fungi, are multinucleate because cross walls, dividing the mycelium into specific cells, are absent or irregularly present. The uninucleate situation, however, is typical for the vast majority of cells, and it would appear that this is the most efficient and most economical manner of partitioning living substance into manageable units. This point of view is given credence not only by the prevalence of uninucleate cells, but because for each kind of cell there is a ratio maintained between the volume of the nucleus and that of the cytoplasm. If we think of the nucleus as the control centre of the cell, this would suggest that for a given kind of cell performing a given kind of work, one nucleus can ‘take care of’ a specific volume of cytoplasm and keep it in functioning order. In terms of material and energy, this must mean providing the kind of information needed to keep flow of materials and energy moving at the correct rate and in the proper channels. With the multitude of enzymes in the cell, materials and energy can of course be channelled in a multitude of ways; it is the function of some information molecules to make channels of use more preferred than others at any given time. How this regulatory control is exercised is not entirely clear.The nucleus is generally a rounded body. In plant cells, however, where the centre of the cell is often occupied by a large vacuole, the nucleus may be pushed against the cell wall, causing it to assume a lens shape. In some white blood cells, such as polymorphonucleated leukocytes, and in cells of the spinning gland of some insects and spiders, the nucleus is very much lobed The reason for this is not clear, but it may relate to the fact that for a given volume of nucleus, a lobate form provides a much greater surface area for nuclear-cytoplasmic exchanges, possibly affecting both the rate and the amount of metabolic reactions. The nucleus, whatever its shape, is segregated from the cytoplasm by a double membrane, the nuclear envelope, with the two membranes separated from each other by a perinuclear space of varying width. The envelope is absent only during the time of cell division, and then just for a brief period The outer membrane is often continuous with the membranes of the endoplasmic reticulum, a possible retention of an earlier relationship, since the envelope, at least in part, is formed at the end cell division by coalescing fragments of the endoplasmic reticulum. The cytoplasmic side of the nucleus is frequently coated with ribosomes, another fact that stresses the similarity and relation of the nuclear envelope to the endoplasmic reticulum. The inner membrane seems to posses a crystalline layer where it abuts the nucleoplasm, but its function remains to be determined.Everything that passes between the cytoplasm and the nucleus in the eukaryotic cell must transverse the nuclear envelope. This includes some fairly large molecules as well as bodies such as ribosomes, which measure about 25 mm in diameter. Some passageway is, therefore, obviously necessary since there is no indication of dissolution of the nuclear envelope in order to make such movement possible. The nuclear pores appear to be reasonable candidates for such passageways. In plant cells these are irregularly, rather sparsely distributed over the surface of the nucleus, but in the amphibian oocyte, for example, the pores are numerous, regularly arranged, and octagonal and are formed by the fusion of the outer and inner membrane.Which of the following kinds of cells never have a nuclei?
...

MCQ->The most suitable unit for expressing nuclear radius is:...

MCQ->Which is the most suitable unit for expressing nuclear radius?...

MCQ->If RADIUS = 3.0 the result of the following FORTRAN 77 program will be

REAL RADIUS, CAREA, SAREA, RATIO
PI
PI = 3.1416
READ , RADIUS CAREA = PI RADIUS RADIUS
SAREA = 2 RADIUS RADIUS
RATIO = CAREA/SAREA...

MCQ-> In the following questions, you have two brief passages with five questions following each passage. Read the passages carefully and choose the best answer to each question out of the four alternatives.The instinctive, natural way to express anger is to respond aggressively. Anger is a natural, adaptive response to threats; it inspires powerful, often aggressive, feelings and behaviours, which allow us to fight and to defend ourselves when we are attacked. On the other hand, we can’t physically lash out at every person or object that irritates or annoys us; laws, social norms and common sense placelimits on how far our anger can take us. People use a variety of both conscious and unconscious processes to deal with their angry feelings. The three main approaches are’ expressing, suppressing and calming. Expressing your angry feelings in an assertive not aggressive – manner is the healthiest way to express anger. Being assertive doesn’t mean being pushy or demanding; it means being respectful of yourself and others. Anger can be suppressed and then converted or redirected . This happens when you hold in your anger, stop thinking about it and focus on something positive.What does the author mean by being assertive ?
...