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Consider a cylindrical vessel of height 'H'. A light source is placed at the center of the base. The area illuminated on the ceiling above the container is 'A'. Now a liquid is half filled in the cylinder. if the new area of ...

In the circuit shown in figure the reading of ammeter is the same with both switches open as with both closed. Then find the resistance R. (ammeter is ideal) *Image* ...

*Image* Find the foce of attraction between the 2 charges??????? ...

*Image* A ring as shown in the 'figure' is made up of two semi circular rings A and B of masses " 2 Kg " and " 4 Kg " respectively. The ring has diameter " 1 m ". If the Ring rolls without slipping, Find – 1.Angular Acceler ...

HOW CAN THE VELOCITY OF ULTRASOUND, INFRA SOUND AND AUDIO WAVES BE EQUAL? IN THE Q.10 OF THE RECENT CHAKRAVYUH TEST OF CLASS 7 THE OPTIONS O B AND C ARE THE SAME BUT WHY I AM GIVEN WRONG WHEN I PRESS THE OPTION C ? ...

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Find equivalent resistance between A and D. *Image* ...

If each resistance of 12Ω then find the equivalent resistance between A and B. *Image* ...

Which oxide of a metal gets reduced only by coke and not by H2 gas or Co gas? a. CuO b. PbO c. Fe2O3 d.ZnO ...

What are the products formed when lead nitrate reacts with hydrochloric acid? ...

If x(1/m)=y(1/n)=z(1/p) and xyz=1 , find m + n + p ...

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Why do substances dissolve in water? And how? ...

Two cogged wheels of which one has 32 cogs and other 54 cogs, work into each other. If the latter turns 80 times in three quarters of a minute, how often does the other turn in 8 seconds? ...

What is the condition that the equation ax2+bx+c has a root in [0, 1]? In class, we integrated the given expression and arrived at the condition a/3 + b/2 +c=0. However, if we take the equation (x-2)(x-0.5)=0 ie x2- 5/2 x+1=0 ...

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\hspace{-16}$(i) $\bf{\int\frac{1}{1+\sin^4 x}dx}$\\\\\\ (ii) $\bf{\int\frac{1}{1+\cos^4 x}dx}$ ...

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Please use the shortest method possible and show the working ∫ 2 sin x + 3cosx/3sin x+4 cos x ...

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What are some examples of human cells that produce proteins for exportation? ...

Let f:R-->R be a continuous function such that f(x)-2f( x/2 )+f( x/4 ) = x2. f(3) is equal to (A) f(0) (B) 4+f(0) (C) 9+f(0) (D) 16+f(0). The equation f(x)-x-f(0) = 0 has exactly (A) No solution (B) One solution (C) Two so ...

If α and β be the roots of equation ax2+bx+c=0,a≠0 and (α+β)(α2+β2)(α3+β3)are in GP,Δ be the discriminant,then a) Δ≠0 b) bΔ≠0 c) cΔ=0 d) bc≠0 ...

Can we apply eq. of continuity in this????.. ...

Two metal pieces having a potential difference of 800 V are 0.02 m apart horizontally. A particle of mass 1.96 X 10-15 kg is suspended in equilibrium between the plates. If e is the elementary charge, then charge on the parti ...