Messages posted by Mandy_12_91

I was disappointed that my 2 yrs hard wrk was a waste........why do pl have to change patterns.....as if q arent enough to make 1 sweat.ppr 2 was better than 1....

maths toughness soaring high man!!!!

Toughness level:

Chem=phy(vry gud!!)>>maths

the paper will be a cake wid cherry for iit topers......but what bout ppl who were banking on aieee.....besides do u guys realise that there were too many marks at stake....why d 8 marks q??? they werent dff!!! well thank god i did maths in the end...

u asked the for the options......that's what i have given.......these r not the solutions.......even i am searching for that

a) instantaneous radius of curvature for a is 2r/4r

b) instantaneous radius of curvature for bis 2r/8^1/3r

Use 1/2 cv^2 formula for energy change.....................=heat liberated

Well i recently came across a question on rotational-

A cylinder of radius r rolls without slipping over a horizontal plane . two points a and b at a particular instant are located on the cylinder. a on vertically top point and b on the right hand side edge of the diameter.

they asked to find the radius of curvature of trajectory of a and b.

the suggested method was of a cycloid. i dont know how to do it.pls help............also suggest an easier method if u have any

What is a cyclotron?

Use parametric form ....................find opposite side vertex by reflection in diagonal, length of diagonal and side of square u can find out.....isnt it

Simply write this function explicitly for the conditions x<2 and x>=2. plot the two solution sets on a number line and take the intersection.

Tell me if ya dont understand

Well quantum numbers are the solutions of the Schrodinger Equation-the possible energy states and corresponding wave functions for an electron are given by a set of three quantum numbers . these r principal quantum number , azimuthal quantum number and magnetic quantum number, later even the electronic spin quantum number was found.

You will come to know about thse gradualy but do not research too much about the schrodinger eqn, its beyond our scope

Please tell me

Why is iodine less soluble in carbon tetrachloride than in alcohol?

Hint:Related to heat of solution and solubility

ya the answer is a cyclic process

Here max lambda signifies that it is the wavelength of the light with maximum intensity that we receive from the celestial bodies sitting on earth.

How do u check for invertible functions using monotonicity?

The point (0,3) is nearest to the curve x^2=2y at

ans=(2,2)

See u know the wavelength of light coming from the stars so e can find temperature of the stars using the equations

Let f(x)=(x-1)^4 * (x-2)^n, n belongs to N

a) max at x=1 if n is odd

b) max at x=1 if n is even

c) min at x=2 if n is even

d) max at x=2 if n is odd

ans=a,c

Applications of derivatives

A particle of mass m is located in a unidimensional potential field wher epotential energy of the particle is given by:

U(x)=A/x^2 - B/x^2

A and B are +ve constants

Find the period for small oscillations which the particle perform bout its mean position

Ans=( $4\prod$ A*(mA)^0.5) /B^2

What is a linear harmonic oscillator?

Preparing for IIT-JEE ?

Arihant Revision Package for IIT JEE - Books, Practice Tests + Rank Predictor

@ INR 1,995/-

For Quick Info