Recently Active Questions

*Image* Arrange them in increasing order of stability With reasons......... ...

guys i am taking this bitasat online test series by resonance and can someone please tell me what all chapters come under GOC 1 and GOC 2 thanks a lot! ...

When an automobile moving with a speed of 36km/hr reaches an upward inclined road of angle 300,its engine is switched off.If the coefficient of friction involved is 0.1,how far will the automobile move up the incline before c ...

lets take it to another level :P A horizontal rectangular plastic pipe of width w and height h, which closes upon itself, is filled with mercury of resistivity ρ. An over pressure P is produced by a turbine which drives this ...

Calculate the increase in internal energy of 1 kg of water at 100 degrees Celsius when it is converted into steam at the same temperature and at 1atm. The density of water and steam are 1000kg/m3 and 0.6kg/m3 resp. The latent ...

*Image* In the given fig. graph of y = p(x) = x4 + ax3 + b2 + cx + d is given. If p(x) + c = 0 has 4 distinct real roots α , β , γ , δ then [α] + [β] + [γ] + [δ] is equal to (A) -1 (B) -2 (C) 0 (D) 1 plzz give the ful ...

In a circle with center O , OA , OB r radii angle AOB = 90 degrees . A semi circle (S1) is constructed using segment AB as its diameter non - overlapping with triangle OAB . The ratio of the area of S1 outside given circle to ...

FInd the value of : (4 cos29 - 3)(4 sin263 - 3) ...

Solomons, Fryhle (Original 9th Edition) vs Solomons,Fryhles, MS Chouhans (Revised for IITJEE) Have anyone tried the second one? If you have noticed any advantages, please share. ...

I was wondering on a simple thing : Why do we measure the angle of incidence or reflection (or say refraction even) w.r.t normal to the surface and why not w.r.t the horizontal surface? ...

Let P be an interior point of a triangle ABC. Extend AP, BP, CP to meet BC, CA, AB respectively in D, E, F. Suppose the areas of the triangles APE, APF and BPD are equal, prove that P is the centroid of triangle ABC. ...

why can a cockroach swim inside conc. sulphuric acid but humans cant evn put a fingure into it??? ...

When a block of iron floats in mercury at 0 degrees C, a fraction K1 of its volume is submerged while at the temperature of 60 degrees, a fraction K2 is seen to be submerged. If the coefficient of volume expansion of iron is ...

2 particles in air are in projectile motion having masses M1 and M2 and velocity v1 and v2 at t=t0; collide at t=t1 ; their velocity becomes v1' and v2' at t=2t1, then [(M1v1' - M2v2') - (M1v1 - M2v2)] is ???? ...

1)Why when a convex lens having radius of curvature R, focal length f and refractive index μ is bisected horizontally along the principal axis its focal length remains the same, whereas when it is bisected vertically focal l ...

*Image* how did we get x/y=c/b? ...

A cubical block is to be constructed with iron sheets 1mm in thickness. What can be the minimum value of the external edge so that the cube doesnt sink in water? Density of iron=8000kg/m3 and density of water=1000kg/m3 I solv ...

find Min. and Max. value of r in 5r2 + 12r.cos(a) + 7 = 0 (where r ≥0) ...

Maximize (x-3)2+(y-2)2 given that (x+3)2+(y+2)2 = 4 ...

*Image* 1.We know that the formula for time period for a simple pendulum is 2pi√(l/g).While deriving the formula we say that Theta is small so sin Theta is aproximately =theta.Thus the formula is valid for small oscillation ...

Find the sum of the the intercepts on the axes of coordinates by any tangent to the curve √x +√y=2 Plz solve this problem............ ...

Can anyone solve HC Verma 30 in Heat and Temperature? ...

the equation e^(x-1)+x-2=0 has how many roots ?????????? ...

sketch the graph for x = a sin 2θ(1 + cos2θ) y = a cos 2θ(1 - cos2θ) ...

Consider a titration of Potassium dichromate solution with acidified Mohr’s salt solution using diphenylamine as indicator. The number of moles of Mohr’s salt required as per mole of dichromate is (2007) a. 3 b. 4 c. 5 d. ...

Why are oxides with lower oxidation number of metals are basic while those with higher oxidation numbers are acidic in case of d-block elements? ...

1. How much ammonia must be added to a 0.004 M Ag+ soln. to prevent the precip. of AgCl when [Cl-] reaches 0.001 M ? Ksp (AgCl) = 1.8 * 10 ^ -10 . Diss. const. for Ag(NH3)2 + = 6 * 10 ^ -8. 2. A conc. strong acid is added to ...

plz. explain this: when we talk of grazing incidence in case of a prism, like when light is almost parallel to one of the faces, then how does light come to kno when to go inside the prism???,as it almost paralel only in case ...

The number of ways of dividing 15 men and 15 women into 15couples,each consisting of man and woman is a. 1240 b.1840 c.1820 d.2005 ...

2- Bromo-2-methyl-propane gives two different products with 1. CH3CH2ONa in presence of CH3CH2OH and 2. CH3CH2OH alone. WHAT R THESE PRODUCTS AND WHY ARE THEY DIFFERENT WHEN THEY BOTH PRODUCE SAME ANION i.e. CH3CH2O- ? ...