Visit this profile later to see if your question was answered.
sorry for the late reply.
As a matter of fact the first thing is you should respect your parents.
At 9th grade tution will help but at higher clas*es you'll consider tutions as a regular thing rather than additional help. I have seen people go tutions from 4th grade and their performance is commonly bad because if they dont concentrate in clas* they dont concentrate in tutions either. So, if you're bad at math and planning to dismiss it after 10th, then you should or else rather try by yourself. Any additional help, ill always try my best :)
Nope, one does not superpowers to help.
Thanks a lot for giving me the chance.
The most sensible student in our batch (y) , well its not him though :P
Well tution teachers are better but you don\'t get coaching for entrance exams so choosing out of the two. I\'d go for Meccedemia , well I\'ve gone to none of them but many of people I know have given a good response for it.
No institution can actually be good enough to guarantee a seat in IIT or AIMS
In the end its your hardwork that actually pays off :)
Nothing , I guess. Well you see I was kind of sad for some reason. So by helping others I am able to wipe that off and being unfortunate , I dint get the opportunity to help that many.
First of all I haven\'t started 11th yet and the answer ill be giving is not mine .
Total Utility can mean the total amount of satisfaction gained from the purchase or consumption of a product. Marginal Utility is the amount of satisfaction gained from purchasing or consuming more of the same product. For Example: If you purchased two slices of Pizza, Your total utility would be the satisfaction you receive from consuming both slices. Your marginal utility would be the satisfaction you gained consuming an additional slice (i.e. The difference between consuming two slices versus one slice) Typically your marginal utility decreases as your consumption increases. For Example: If you have eight pizzas, one extra slice is not likely to bring you as much satisfaction as a second slice would if you only had one slice of pizza (as opposed to eight pizzas)
Your welcome if the answer is clear , and I am really sorry if it was wrong and unclear
Well I haven\'t started 11th grade yet but tutions isn\'t necessary if the teacher is good and you practice well . So try to find out whether you need tutions or not . But the advantage is that tution teachers improve you if you\'re weak , they give you worksheets, papers , clear your doubts any time but a small disadvantage is that if you go for tutions , you get overconfident and you don\'t listen in clas* .
The bigger disadvantage is that if you make yourself dependent on tutions , you are likely to have difficulties in higher .
You know what\'s best for you :)
Don\'t take it , Math is a subject of practice . So its a time consuming subject. And you can concentrate more on the other subjects. It\'ll be easier for you to score well. You don\'t need it for medical. And if you\'re going to India , then don\'t even think of it , the entrance exam has bio , physics and chem .and bio has higher weightage.
Depends on how you consider it , overconfidence can kill you. And I am just starting 11th .be positive :)
A small tip I can give is , either revise everything after clas* or learn everything before the clas* and you\'ll be more clear during the clas*
I never said when after boards , did I ?
No, i\'d be happy if people asked question, sadly there is like no one with questions. Thanks for your concern :)
Angle of refraction - the angle made between the refracted ray and the normal at the point of incidence .
Lateral shift - the PERPENDICULAR distance between the original direction of the incident ray and the emergent ray .
Great as*umptions but unfortunately you\'re wrong , guys love to help :)
Is that suppose to be a question ? Cos I see no question marks :P just kidding , sorry but this is something I can\'t disclose . Do good in such a way that if you did it with the right the left wouldn\'t be aware of it :)
First of all , I am really sorry for the late reply . Its just that noone asked any questions these days so I never checked
There is no actual easy way I guess but try to understand the reactions rather than byhearting them . First of all you should be clear with how to draw/make all the basic carbon structures and their functional groups . Ok in the OXIDATION reaction . When ethanol is treated with alk. KMnO4 +heat one oxygen atom is added and hydrogen is reduced by two . This results in forming ethanoic acid .
Then the Addition reaction . This is used to turn an unsaturated compound to saturated compound . In the textbook R is shown , where R-means any element , consider it as hydrogen . So when hydrogen is added to ethene in the presence of a catalyst (eg : nickel) it turns to ethane . The double bond is removed and forms a compound with single bond . This is usually used in the manufacturing of hydrogenated oils ( ghee, vanaspathy etc )
Substitution reaction ... ( I don't actually know the significance of this reaction )
It is used to replace a chlorine atom in place of a hydrogen atom one by one .
CH4 + HCL ---> CH3CL + HCL(in the presence of sunlight ) ...
CH3CL + HCL ---> CH2CL +HCL and so on ........
If you require the reactions of ethanol and ethanoic acid too , pls reply .
ummmm... Kind of :p
Lateral shift is the PERPENDICULAR distance between the emergent ray and the original DIRECTION of the incident ray (in a glas* slab )
Conditions that affect the lateral shift are :
1) Refractive index of the glas* slab and its thickness
2) Nature of the light.
:)
Cool , why don't you accept my proposal , I have been waiting for you , lying in your bag . :P
No time for fun , exams are coming :P
I haven't helped anyone yet :s
Cataract – the crystalline lens of some old people become hazy or even opaque due to the development of a membrane over it . it can even lead to total loss of vision of the eye . vision can be restored by surgey
Dispersion of light- the phenomenon of white light splitting into its constituent colors.
The band of colors produced due to dispersion of white light is called spectrum
Rainbow : the phenomenon of formation of coloured arcs by dispersion and internal reflection of light
Blue color of the sky : The particles of air present in the atmosphere are smaller than that of visible light ? it refracts light only of shorter wavelength (i.e. the blue end) ? thus the sky appears blue .
Danger signals are red because red has the longest wavelength and it scatters the least , making it visible at a longer distance .
The sun appears red in the early morning because when the sun is near (or below) the horizon the light of longest wavelength only reaches the viewers eye ( i.e red) and the light of shorter wavelength scatters out . thus the sky appears red in the early morning.
Stars twinkle , as the atmospheric level in the earth is not stable , the apparent position of starlight reaching the viewers eye keeps changing , thus stars appear to twinkle , while they DO NOT twinkle actually
Method to calculate focal length of lens required for a person
Take U as the distance he wants to see ,(always –ve)
Take V as the distance he can see ( always –ve)
Eg : a person can only see objects beyond 75cm . what is the focal length required for the person so that he can obtain normal vision (considering 25cm to be the normal near point)
Taking v = -75cm (what he can see)
U= -25cm ( what he wants to see)
As 1/f= 1/v – 1/u
1/f = 1/-75 – 1/-25
= 1/-75 1/25
1/f = 2/75
? f= 37.5cm (always positive for hypermetropic eye)
? P =1/f(in meters)
? = 100/f(in cm)
? =100/37.5
? = 2.67D
You're welcome
Sorry to inform you that I don't have the answer to the first one but ill surely answer the second part . Only by helping other I'd come across new questions , so to sum it up I am helping myself
HUMAN EYE AND THE COLOURFUL WORLD
The human eye is a sensitive sense organ, functions like a camera. The parts are:
(keep the diagram in front of you to make it easier to understand)
1) cornea : the transparent spherical membrane covering the front of the eye . light pas*es through this before entering the eye . as it is convex in shape , most of the refraction of light occurs at the outer surface of the cornea.
2)Iris : the coloured DIAPHRAGM between the cornea and the lens
3)Pupil : the middle point of the iris . it is black in colour as it has no light reflect from it . It regulates the amount light entering the eye
4)Crystalline lens (eye lens) :it is a transparent crystalline lens , convex in nature, compared of fibrous jelly like material which is held in position by ciliary muscles . the focal length of the eye lens can be changed by changing its shape by the action of ciliary muscles .
5)Retina : The screen on which the image is formed by the lens system of human eye s called retina . the retina is a delicate membrane having enormous number of light sensitive cells ( rod and cones )
Eye lens forms an inverted real image of the object on the retina . the light sensitive cells get activated upon illumination and generate electrical signals . the sends these signals to the brain via optic nerves and gives rise to the sensation of vision . in this process of signal transmission from optic nerve to brain the inverted image is re-inverted to give us our usual impression of an erect image .
Accommodation : the ability of the eye lens to see far and near objects by adjusting is focal length is called the accommodation of the eye .
The ciliary muscles can modify the curvature of the lens .
(distance for a normal eye - infinity?) Distant objects – relaxation of ciliary muscles , lens becomes thinner and focal length increases
(distance for normal eye – 25cm)Near by objects – ciliary muscles contract , lens becomes thicker and focal length decrease
To make it easier imagine a thin guy relaxed with long hands (f length) and can go further and a fat guy who is congested with tight cloths ( ciliary muscles contract) and short hands and can go shorter distance .
To sum it up a normal eye can accommodate from 25 cm to infinity
Myopia – The defect in which the eye cannot see distant objects is called myopia
Causes – elongation of the eye ball or excess curvature
Correction – concave lens of appropriate power
Hypermetropia – The defect in which the eye cannot see nearby objects distinctly
Causes – shortening of the eye ball or excess focal length
Correction – convex lens of appropriate power
Presbyopia – the defect in which the eye looses its flexibility to change the shape of its lens due to ageing . sometimes the person suffers from loss of both the ability to see distant and near by objects
Causes - ageing
Correction – concave , convex or bifocal lens ( depending of the defect ) now a days surgeries are also available to cure the disease
report me about what :S ?
who are you ? :O
No one because I love no one