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hello dear..
The back bone for complete IIT course are vectors and calculas.You have to cammand these topics to get grip over physics as well as in mathematcs.
considers the direction and signs in vector while solcing the problem,analyze each problem in a 3d plane to get more grip in the subject
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hello dude...
Apply the formula od activation energy and compare the two expression you will easily get the answer..
formulae is given in evry text book of chemistry
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1.Write the formulae many times
2.revise the formulae when you are doin nething just as playing,sleeping,in thee washoom
3.make the list of formulae in the tabular form and hand it in the doors of the entrance of your room
4.hang the list of formulae on the walls of ur room
5.revise the formulae each n every day before goin to sleep and after waking up
6.Also buy small pocket dictionary of physics ,chemistry and maths which have the formula,revise it when ever you have time
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hello dear..
iam telling you the method by which i have learned the formulae in physics,chemistry and mathematics.
1.Write the formulae many times
2.revise the formulae when you are doin nething just as playing,sleeping,in thee washoom
3.make the list of formulae in the tabular form and hand it in the doors of the entrance of your room
4.hang the list of formulae on the walls of ur room
5.revise the formulae each n every day before goin to sleep and after waking up
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hello dear..
method:
Apply the condition of collinearity of three point s and you will some condition from it..
If a,b,c be pth ,qth and rth term of HP respectively than :
let the first term of HP be A and comon difference be D.
1/A + (p-1)D = 1/a
1/A + (q-1)D = 1/b
1/A + (r-1)D = 1/c
eliminate A and D from above three equation you will get the sam e condotion when three point are collinear
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F>O>N>Cl
Oxidising property depends on two things:
1.Electron Affinity
2.Hydration energy.
PLz refer NCERT chemistry books for more clear n precise concept..and also refer RK gupta Inorganic chemistry by arihant for this concept
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hello dear..
r u really preparing for IIT .........CDs for AIEEE,IIT is not clear to me ...nudge ,what you want to ask from me
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USE BLACK BALL PEN TO FILL THE FORM AND HB PENCIL WHR IT IS REQUIRED
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hello dear..
1.If the refractive index of the surrounding is more than the refractive index of the lens ,than it changes the nature of a lens
2.f the refractive index of the surrounding is less than the refractive index of the lens ,than thr is no changes the nature of a lens.
Hope this hint will help you to solve your problem,nudge me i will provide you a complete solution
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hello dear
Marks is a relative thing,you have to score a good rank to get NITs..atleast under 45 thousand to get in any NNIT with any branch
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hello dear..
organic chemistry is one of the most scoring topic for IITJEE...i must suggest you to read few books in it to get a grip in the subject:
1.Morison boyd
2.Francis carry
3.RK gupta arihant for problem
4.NCERT
5.RL madan
6.Peter skies...for reaction mechanisms
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it is not known...i think..as i have also qualified NSEP,but i have no knowledge about marks in it for rank
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thermocouples are a widely used type of temperature sensor and can also be used as a means to convert thermal potential difference into electric potential difference. They are cheap and interchangeable, have standard connectors, and can measure a wide range of temperatures. The main limitation is accuracy; System errors of less than one Kelvin (K) can be difficult to achieve.
A thermostat is a device for regulating the temperature of a system so that the system's temperature is maintained near a desired setpoint temperature. The thermostat does this by controlling the flow of heat energy into or out of the system. That is, the thermostat switches heating or cooling devices on or off as needed to maintain the correct temperature.
A thermostat may be a control unit for a heating or cooling system or a component part of a heater or air conditioner. Thermostats can be constructed in many ways and may use a variety of sensors to measure the temperature. The output of the sensor then controls the heating or cooling apparatus.
Common sensors include:
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A thermostat is a device for regulating the temperature of a system so that the system's temperature is maintained near a desired setpoint temperature. The thermostat does this by controlling the flow of heat energy into or out of the system. That is, the thermostat switches heating or cooling devices on or off as needed to maintain the correct temperature.
A thermostat may be a control unit for a heating or cooling system or a component part of a heater or air conditioner. Thermostats can be constructed in many ways and may use a variety of sensors to measure the temperature. The output of the sensor then controls the heating or cooling apparatus.
Common sensors include:
 A Honeywell electronic thermostat in a retail store
These may then control the heating or cooling apparatus using:
- Direct mechanical control
- Electrical signals
- Pneumatic signals
hermocouples are a widely used type of temperature sensorand can also be used as a means to convert thermal potential difference into electric potential difference. They are cheap and interchangeable, have standard connectors, and can measure a wide range of temperatures. The main limitation is accuracy; System errors of less than one Kelvin (K) can be difficult to achieve.
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yes,it is true....two waves superimpose with each other,hence interference occurs...waves can be of freequency and wavelength
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hello dear..
the sucess can only be achived by doing hard work..so start doin from now
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hello dear..
v ve to find f(x) here...
Put x=tan-1t Then it becones
3f(t)+f(1/t) = (tan-1t)2. ............(1)
3f(1/t)+f(t) = (cot-1t)2..............(2)
8f(t) = 3(tan-1t)2.- (cot-1t)2.
now solve it
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hello dear..
i must suggst u to read NCERT books for these doubts.....than any other standard text..
a,b,c are three vectors tha..
[abc] = 0
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hello dear..
the sweet solution of this is:
L 1 and L2 are two line
let slope of L1 = m1 and L2 = m2 ;
find the angle betwween them ,find tan x
tan x will be positive and negative ,take other sign...
find the point of intersection of the lines ,say thru p.
find the equation of L3 thru the point P and modulus of the tan x
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Vriti Edustore
