Recently Active Questions

*Image* find the equivalent capacitance between A and C. ...

five moles of helium are mixed with two moles of hydrogen to form a mixture . The molar mass of helim M1=4g and that of M2=2g . then the equivalent molar mass of the mixture will be ? a. 6g b. 13g/7 c. 18g/7 d. none ...

an ideal gas of molar mass M is contained in a vertical tube of height H , closed at both ends. the tube is acelerating vertically upwards with a accleration g . then the ratio of pressure at the bottom and at the mid point o ...

a cylinder containing gas at 27o C is divided into two parts of equal volume each of 100cc and at equal pressure by a piston of cross section area 10.85cm2 . the gas in one part is raised in temperature to 100o C while the ot ...

Post you biology questions in this section :) ...

*Image* ...

The presence of feathers and power of flight are the characteristic features of (a) mammalia (b) reptilia (c) aves (d) amphibia ...

Why are lysosomes called the suicidal bags of the cell ...

Why are peroxides good free radical initiator? ...

What is the difference between an organ and organelle ...

Capacitor C is charged to a potential V and the battery is disconnected. now if the plates are brought close slowly by some distance: a) some +ve work is done by external agent b) energy of capacitor will decrease c) energy o ...

If every action has its equal and opposite reaction, then why is the universe expanding? It is exerting force and expanding but an equal force should be acting on it to make contract. So it should not be expanding, isn't it? ...

\hspace{-16}\bf{\lim_{x \rightarrow 0}\frac{1-(1+x)^{\frac{1}{x}}}{x}=} ...

Which of the following pairs belong to the category of cold blooded animals? (a) snakes and birds (b) bats and rats (c) frog and snakes (d) birds and monkey ...

Which is an acidic hydrocarbon (A) CH3CH2CH2CH3 (B) CH3C≡CCH3 (C) CH3C≡CH (D) CH2 = CH – CH = CH2 ...

The graph of the function cosx.cos(x+2)-cos^2(x+1) is 1.A straight line passing through (0,-sin^2 1) with slope 2. 2.A straight line passing through (0,0) 3.A parabola with vertex(1,-sin^2 1) 4.A straight line passing through ...

Organisms without nucleus and cell organelles belong to (i) fungi (ii) protista (iii) cyanobacteria (iv) archaebacteria (a) (i) and (ii) (b) (iii) and (iv) (c) (i) and (iv) (d) (ii) and (iii) ...

A small block of mass m is placed on the top of a right triangular block of mass M, which in turn is placed on a horizontal surface. All the surfaces are frictionless. Angle of inclination is α. Height of the triangular bloc ...

*Image* The ring is rolling without slipping with a constant velocity "v", when a tangential force "F" is applied on it. What will be the net acceleration on the body.? ...

\hspace{-16}$Let $\bf{A = }$ set of $\bf{ 3 \times 3}$ determinat having entries $\bf{1}$ or $\bf{-1,}$\\\\ $\bf{(1)}$ If a determinat $\bf{B}$ is chosen randomly from the set of $\bf{A,}$\\\\ then the probability that the pr ...

\hspace{-16}\bf{(1)}$ The Max. and Min. value of $\bf{3 \times 3}$ Determinant whose element are taken\\\\ from the set $\bf{\left\{-1,1\right\}}$\\\\\\ $\bf{(2)}$ The Max. and Min. value of $\bf{3 \times 3}$ Determinant whos ...

√(3+2√2)=√3+2 as per answer given. but it is not correct. answer would be √2+1. ...

I think that the boiling of rice is not physical change but it is chemical reaction as carbon contain is not same. ...

What is component of vector? Plzz explain in simple manner ...

A certain reaction A + B → Product is first-order w.r.t. each reactant with k = 5.0 x 10-3 M-1s-1. Calculate the concentration of A remaining after 100 s if the initial concentration of A was 0.1 M and that of B was 6.0 M. ...

The standard reduction potential of a calomel half cell is 0.28 V at 25°The standard reduction potential of a calomel half cell is 0.28 V at 25°C. Calculate half cell potential when 0.1N KCL soln is used ...

∫(-100 to 100) [t3]dt ...

Which Books Should i buy for organic chemistry.???? ...

What is the maximum possible value of a positive integer n,such that for any choice of seven distinct elements from {1,2,....n}, there will exist two numbers x and y satisfying 1<x/y≤2? ...

*Image* ...