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explain water voltameter and silver voltameter ...
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Your friend has two children. You meet one of them and find out that he is a boy. What is the probability that the other child is a girl? P.S. - A child can only be a boy or girl ...
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2 frnds after a long time decided to meet at a particular coffee shop between 5:00 pm to 6:00 pm on a specified day.they also decided that the person whho comes earlier will not wait for the second person for more than 10mins ...
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Prove the criteria for divisibility by 9. ...
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Show that If a rod is held at an angle θ to the horizontal and released, its lower end will not slip if friction b/w rod and ground is greater than (3sinθcosθ)/(1+3sin2θ). (...DC Pandey) ...
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Plot a curve b/w P vs V plot: A(V0,P0) B(V0,3P0) C(3V0,P0) join A, B, C with straight lines Find Efficiency ...
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Firstly this not a lengthy question can be solved in 2-3 steps. Two towers of Height H and 2H separated by √3H what is the min velocity required to throw the ball from side of short tower so that it just touches small tower ...
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Q1. A fixed Pt. P(5,2) is given and two points A and B on x=y and y=0, Find: i) coordinates of A for |PA+PB+PC|min ii) coordinates of B for |PA+PB+PC|min iii) value of |PA+PB+PC|min ...
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Question of Ramanujan contest... ...
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*Image* RR' is a road on which Powerplant P has to be constructed. There are two villages A & B on same side of the road. Find the optimum location of poweplant P such that wiring cost i.e. PA+PB is minimum. Note: You sho ...
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Let p,q,r,be three prime numbers such that 5<=p<q<r and 2p2-r2>=49 2q2-r2<=193 find p, q ,r ...
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*Image* Consider a ball which is projected horizontally with speed u from the edge of a cliff of height H as shown in the Fig. (1). There is air resistance proportional to the velocity in both x and y direction i.e. the motio ...
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*Image* ...
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*Image* The Figure shows two rods BC and OA hinged from B and O respectively. Rod BC has a groove in which A of rod OA can slide smoothly. At a given instant,the rod BC has an angular velocity ω. The speed of end A of the ro ...
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*Image* a rod of length 2m moves in horizontal x-y plane. at any instant end 'a' of the rod is at the origin and has velocity V1 (see fig.). the other end B at the same instant is moving with velocity V2 (see fig.). t ...
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*Image* A Long bus has to be passed from the top to the wider road on the side horizontally. The width of the road at the top= a The width of the road at the side= b Find the longest bus that can be made so that it ca ...
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Pls post solution of test which you posted (T-276). plzzzzzzzzzzzzz. :) ...
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This is a very standard problem. Many of you must have solved this one. This is not for those of you who get the 99.5%ile+ in FIITJEE Mathematics tests ;) But for many other mortals who fear things. Pls try to solve this. It ...
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f(x) and g(x) are two polynomials such that f(x2+x+1)=f(x)g(x). Show that f(x) is a polynomial of even order.(i.e. highest power of x in f(x) is even). ...
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Suppose a ball of mass m moving with a speed v strikes a horizontal rod of mass M and length L placed on a smooth floor at an end. The coefficient of restitution is 0.5. Find the angular velocity of the rod, the linear veloci ...
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*Image* ...
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derive the formulae for 12+22+32+......+n2 without using mathematical induction ...
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a whel consists of a circular disc of radius 'a' with four circular holes, each of radius a/4. the centres of the holes form a square and each centre is at a distance a/2 from the centre of the disc. if m is the mass ...
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A thread is wrapped over a massless pulley. The pulley and rope have a coefficient of friction k between them. If the thread/rope is wrapped by an angle of "theta".. then what is the ratio of the tensions on both side ...
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Without graphing can you write out all solutions to x2 = 2x ? This is not entirely JEE stuff, but you can learn an interesting concept here ...
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A pack contains n distinct red cards and n distinct white cards.This pack of 2n cards is divided into 2 equal parts at random.A card is drawn from each part at random ...find the probability that both the cards are of same co ...
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A small collar of massm is given an initial velocity of magnitude v0 on the horizontal circular track fabricated from a slender rod.If the coefficient of kinetic friction is μk, determine the distance travelled before the co ...
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If two carbons atoms are joined by sigma bonds then how the free rotation of the atoms or groups attached tetrahedally to the carbon atom is possible ...
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Help Jack!! Some Jack's physics and see how it helps him escape the flying Duchman :P Q.1 Jack is on the top of a mast(10 m high see level) of his Black Pearl and sees the flying Duchman (point sized :P) at a distance of ...
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why cant we have rearrangement in carboanions like we have in carocations??? is it due to the face dat -I effect increses.........so the species become more destablised??? n why doesnt rearrangement oc ...
