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*Image* Now,the block is shifted l/2 from the given position in such a way it compresses a spring and released. Find the time period of oscillation. ...

∞ Σ tan-1(1/2k2) = θ k=1 Find tanθ [7] ...

Somebody asked me this question: *Image* I'm wondering what could answer be.. initially thought of anthracene but that probably couldn't be case. I'm not knowing answer.. can anyone solve it? ...

The number of functions defined from {1,2,3,4,5} ------> {6,7,8,9,10} which is alternatively increasing and decreasing i.e. a local maxima comes between two local minimas, and a local minima comes between two local maximas ...

if sinα ,sinβ,sinγ are in AP and cosα,cosβ,cosγ are in gp then find the value of \frac{cos^{2}\alpha +cos^{2}\gamma -4cos(\alpha)cos(\gamma ) }{1-sin(\alpha )sin(\gamma) } ...

(1) find total no. of Integral point that can be inside or on the circle x^{2}+y^{2}=49 ...

(1) let x be a positive real.Find maximum possible value of y=(x2+2- x4+4 ) / x ...

Let ABC be any triangle with altitudes h1,h2,h3 and inradius r, then find the minimum value of (h1+r)/(h1-r) +(h2+r)/(h2-r) +(h3+r)/(h3-r) = If A,B and C are three non-collinear points in a plane, the area of the greatest equ ...

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1. Any tertiary alkyl halide is taken and reacted with aq NaOH in i>H2O ii>DMSO.The reactions undergone are a. SN2,SN2 B. SN1,SN1 c. SN1,SN2 d. SN2,SN1 Multi Ans Correct --- 2. In conversion of EAA to 3-methyl-2-pentano ...

*Image* A sphere is rolling on a rough surface without slipping at the point of contact.Find the radius of curvature of the trajectory of point A when it is R/2 distance about the centre of the sphere.Velocity of COM is V ...

One of my old doubts ; still unsolved.... *Image* (P.S. I don't have the answer) ...

how stable is it? i want to know more about this , plz give some links . i waqnt the content to be only about anilinium ion and not in terms of basicity with amines. ...

A bag contains n identical red balls , 2n identical black balls & 3n identical white balls . If probability of drawing n balls of same colour is equal to 1/6 , then minimum no of red balls in the bag is equal to ? ...

I am facing problem as to when and where to conserve Linear momentum of a system and where to conserve the angular momentum of a system. can the linear momentum be conserved when angular momentum is already conserved? ...

ASSERTION &REASONING STATEMENT 1: A +ve charged sphere & a -ve charged sphere r kept at finite distance. The total electrostatic P.E. of system must b -ve. STATEMENT 2: P.E. btwn 2 like charge particles is +ve & -ve for 2 unl ...

Prove that 2^{k}\begin{pmatrix} n\\0 \end{pmatrix}\begin{pmatrix} n\\k \end{pmatrix}-2^{k-1}\begin{pmatrix} n\\1 \end{pmatrix}\begin{pmatrix} n-1\\k-1 \end{pmatrix}+2^{k-2}\begin{pmatrix} n\\2 \end{pmatrix}\begin{pmatrix} n-2 ...

Let f(x) be a function defined as f(x-1)+f(x+1)=f(x) then what iz the period of the function f(x)? (1)8 (2)4 (3)2 (4)12 answer me with explanation ...

find the values of a for which the equation- (x-1)2=|x-a| has exactly 3 solutions ...

1)No of ordered triplets (x,y,z) satisfying (1+sin^{4}x)(2+cot^{2}y)(4+sin4z)\leq 12sin^{2}x 2)Let P be a point on the hyperbola x2-y2=a2,wher a is parameter,such that P is nearest to the line y=2a.The locus of P is _____ 3)s ...

Can anyone explain the difference between 5C3 and 5C1 x 4C1 x 3C1 ?? ...

Q1. Let f(x+y) = f(x).f(y) for all x,y belongs to R and f(5) = 2 and f'(0) = 3. Then f'(5) = ? Q2. Let f(x) be defined in R such that f(1) = 2 and f(2) = 8 and f(u+v) = f(u) + kuv - 2v2 for all u,v belongs to R and k is a fix ...

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a man is on a boat which floats in a pond.The man jumps into the water.at the time when the man is inside water completely the level of water will a)be same b)inc c)dec wont it be same ?? just forgive me for asking a silly qu ...

Draw the graph of the EMF vs Time for the coil given here.. The arrangement starts from rest and has a constant angular acceleration. The half part has a radius r, the magnetic field on the right side is B and α = constant = ...

Q1...................... for 0< \theta <\pi /2 the solutions of \sum_{m=1}^{6}{cosec(\theta +\frac{(m-1)\pi }{4}}).cosec(\theta +\frac{m\pi }{4})=4\sqrt{2} are 1) pi/4 2)pi/6 3)pi/12 4)5pi/12 P.S i want a shorter method ...

Statues coated with white lead on long exposure to atmosphere turn black and the original colour can be restored on treatment with H2O2 .Why ? ...

Q. There are four compounds X,Y,Z,W whose standard reduction potentials are -0.8V, 0V, 0.8V and 1.5 V Which of these can act best as both reducing and oxidising agent? (a) X (b) Y (c) Z (d) W ...

Area bounded by the curve y=ex2, x-axis and the lines x=1, x=2 is given to be equal to a sq units. Area bounded by the curve y=√(ln x) , y-axius, and the lines y=e and y=e4 is equal to ? ...

What is the pH of a solution prepared by mixing 0.0100 mol HA (with Ka = 1.00*10-2) and 0.0100 mol of A- and diluting with water to 1.00 L? ...