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From the point (2, 5) rays of light are sent at 600 with the line 2x + y = 1. Find the equations of lines of reflected rays if the rays reflect from 2x + y = 1. ...

*Image* Suppose ABC is an equilateral triangle BD/BC = 1/3 CE/CA = 1/3 AF/AB = 1/3 find the area of the shaded triangle divided by the area of triangle ABC. ...

Which of the following statement(s) is/are true regarding Langmuir's absorption isotherm ? A. It explains only mono layer absorption. B. Molecules absorbed at one site do not interact with surrounding adsorbate molecules. C. ...

A belt of mass 2 kg is wrapped over two cylindrical wheels of small radii rolling on a horizontal rough surface.Each wheel has a velocity 3 m/s as shown in the figure(assume that belt does not slip).What will be the kinetic o ...

What is the effective nuclear charge at the periphery of nitrogen atom when an extra electron is added in the formation of an anion.Compare this value when the atom is ionised. ...

In which of the following arrengement if we apply 10 volt across A and B the PD across C and D is found to be 7 volt, but when we apply 10 volt across C and D the PD across A and B is found to be 10 volt? *Image* ...

tanA,tanB,tanc are the roots of the eqn. x3-k2x2-px+2k+1=0,then triangle abc will be a triangle of what nature?explain the ans? ...

q1) *Image* 5 blocks are placed in the manner shown in the figure. Mass and legth of each such block is m and l. What should be the distance between each of the blocks to preserve equilibrium? (Distances should be equal) ...

though may be easy....but not getting[2] if x_{1}^{2}+x_{2}^{2}+x_{3}^{2}........x_{20}^{2}=400 y_{1}^{2}+y_{2}^{2}+y_{3}^{2}........y_{20}^{2}=900 find \frac{x_{1}}{y_{1}}+\frac{x_{2}}{y_{2}}+\frac{x_{3}}{y_{3}}+...........\ ...

(IE)1 and (IE)2 of Mg(g) are 740 and 1450 kJ mol-1. Calculate percentage of Mg+(g) and Mg2+(g) if 1 g of Mg(g) absorbs 50.0 kJ of energy. ...

In which of the following arrengement if we apply 10 volt across A and B the PD across C and D is found to be 7 volt, but when we apply 10 volt across C and D the PD across A and B is found to be 10 volt? *Image* ...

Can we use fluid in aieee form???????? i have written my mother's name wrong... ...

which is /are correct about emulsions? 1>demulsification can take place by chemical method only 2>small amount of water can not be mixed in water in oil emulsion 3>sodium oleate is used to prepare oil in water emulsi ...

This thread will focus on some very basic things of organic chemistry. They mainly will help to solve problems that are based on passage type questions. Feel free to contribute. Please do not post everything in a single post. ...

It is not at all hard , ( not only from the view point of sirs ) , so try this ---- 1 > Let a , b , c, d , e …… be the positive divisors of “ n “ except n and 1 . Prove that --------- ( 1 / a ) + ( 1 / b ) + ( 1 / ...

Q1 peptization is a) evaporation of dispersed med b)precipiation of dispered phase c)disintegration of dipersed phase d)combined effect of dispersion medium on dispersed phase Q2 Colloidal particles of water are coagulated ef ...

If the potential applied to the tube is doubled and the separation between the between the filament and the target is doubled,the cut-off wave length A. will remain unchanged B. will be doubled. C. will be halved D. will beco ...

Oxalic acid decomposes in presence of UO22+ & loses its property. This is used in estimating the amount of decomposed acid & quantum efficiency of the process Here efficiency = 50 % . 1L of 0.005 M oxalic acid solution was ir ...

Vectors coincide with the edges of an arbitrary tetrahedron.Is it possible for the sum of these 6 vectors to equal the zero vector? ...

SO atlast after toiling for hours i finally post this question here.... "In how many ways can a total of 1001 be made from numbers 1-100 without repeating any number" remember-using all numbers is not necessary but no number ...

Let a<b<c be reals such that a+b+c=6 and ab+bc+ca=9 Then prove that 0<a<1<b<3<c<4 ...

Hi Tiitians , here is one googly frm my side ...but its a simple one though we kno that acceleration a = dv/dt = vdv/dx .....(1) now consider a particle with a positive velocity at t=0 and a negative acceleration . Assume thi ...

Among the following compounds,which will react with acetone to give a product containing C *Image* N bond ?? A. C6H5NH2 B. (CH3)3N C. C6H5NHC6H5 D. C6H5NHNH2 ...

There was a question in the jee form Board of Qualifying Exam? I marked my 10th board which was ICSE but some one told me we had to mark the 12th board which is State board.... wat is correct? ...

On the second page of the form, the first column asks to write down the name of qualifying examination passed/ appearing... i am appearing for the class 12 examination in cbse board this year.... what should i write there??? ...

Use data from Figure to determine whether a solution containing 48 g of KNO3 per 100 g of water at 40 °C is saturated, unsaturated, or supersaturated *Image* ...

In the reaction p-chlorotoulene with KNH2 in liq NH3 major product is A. o-toulidine B. m-toulidine C. p-toulidine D. p-chloroaniline ...

*Image* How will the divalent nitrogen affect the stability of the species? ...

these days i am seeing a lot of sums being solved by a rather new concept negative mass can anyone expln to me its basic theory and its working and applications and if possible any buk over it ...

*Image* PS: i dont hav d ans ...so pls post full method ....its not a lengthy one :P ...