Recently Active Questions

*Image* ...

Four point charges each of +q are rigidly fixed at the four corners of a square planar soap film of side 'a'.The surface tension of the soap film is T.The system of charges and the planar film are in equilibrium and a=k[q2/T] ...

*Image* ...

*Image* ...

Find the number of integral values of parameter'a'for which three chords of the ellipse x2/2a2 + y2/a2 =1(other than its diameter)passing through the point P(11a,- a2/4 )are bisected by the parabola y2=4ax. ...

Write the following function in the simplest form :- tan_1√ 1-x/1+x ...

Are subjects like biotechnology,bioinformatics and biochemical engineering taught in IIT? ...

*Image* ...

*Image* ...

two fixed pt.s A and B are taken on the axes such that OA=a and OB=b ; two variable point A1 and B1 are taken on the same axes;find the locus of intersection of A1B and B1A: 1. when OA1 + OB1=OA + OB 2. when 1/OA1 - 1/OB1 = 1 ...

How to understand which variable is a function of which other variable. For eg:- In the formula : h = ut - (1/2)g(t^2) the variable h is a function of t How to make similar interpretations in case of other formulas? Can anyon ...

I am going to leave Biology and take up Computer Science in Class 11. My school teachers suggest that I'm good in both,so they were of the opinion that I was good to go with either. My question is : Will I be able to take up ...

The volume of a cube in m^3 is equal to the surface area of it in m^2.The volume of the cube is; a) 64m^3 b)216m^3 c)512m^3 d)196m^3 ...

If S(n) = Σnk=1 4 k /4 k 4 + 1 then find the value of 221s(10)/10 lz show the ful sonn... ...

The value of the determinant *Image* is (a) 15!+16! (b) 2(15!)(16!)(17!) (c) 15!+16!+17! (d) 16!+17! ...

so...lets see who can apply d best logic.... prove that- " A dumb cat always falls while walking"...... ...

Assertion : If a gas container is placed in a moving train , the temperature of the gas will increase. Reason : Kinetic energy of a gas molecule will increase ...

Out of (2n+1) tickets numbered consecutively, three are drawn at random. the chance that the numbers on them are in A.P is (a) n2/4n2-1 (b) 2n/4n2-1 (c) 3n/4n2-1 (d) 4n/4n2-1 ...

0.7 g of N{a_2}C{O_3}.x{H_2}O is dissolved in 100 mL {H_2}O,20mL of which required 19.8 mL of 0.1 N HCl. The value of x is a) 4 b) 3 c) 2 d) 1 ...

If {{m}_{1}} and {{m}_{2}} are the slopes of the tangents to the hyperbola frac{{{x}^{2}}}{25}-frac{{{y}^{2}}}{16}=1 which pass through the point (6, 2), then a) {{m}_{1}}+{{m}_{2}}=frac{24}{11} b) {{m}_{1}}{{m}_{2}}=frac{40} ...

Two thermally insulated vessels 1 and 2 are fiiled with air at temperature (T1,T2),volumes (V1,V2) and pressure(P1,P2) respectively.If the valve joining the two vessels is opened , the temperature inside the vessel at equilib ...

If A = {1,2,3,4....18,19} then the number of functions f : A→A such that f(x)=y and sum of digits of x is equal to the sum of digits of y is (a) 540 (b) 219 (c) 218 (d) 720 ...

If three positive real numbers a, b, c are in A.P. such that abc = 4, then the minimum possible value of b is (a) 23/2 (b) 22/3 (c)21/3 (d) 25/2 ...

*Image* ...

Number of zeroes at the end of the number Î rr where r varies from 1 to 25, is (a) 50 (b) 49 (c) 49 (d) 100 ...

Two seconds after projection a projectile is travelling in a direction inclined at 30° to the horizontal.After one more second it is travelling horizontally.Determine the magnitude and direction of its velocity. ...

P is the point (-1,2) , a variable line through p cuts the axes in A and B . Q is a point on AB such that PA, PQ ,PB are in H.P. find the locus of Q ...

Water is to be pumped to fill a tank of volume 30 kL at a height of 40m from the ground in 15 mins by a pump on the ground floor.What is the electric power consumed by the water pump?Efficiency of pump=30%.. Density of water= ...

An infinite GP has first term x and sum 5, then x belongs to a) x < -10 b) -10 < x < 0 c) 0 < x < 10 d) x > 10 ...

*Image* How to do di type of sums? ...