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Recent questions tagged q193

2g of hydrogen diffuses from a container in 10 minutes . How many grams of oxygen would diffuse through the same container in the same time under similiar conditions ?

asked Apr 8, 2014 by sharmaaparna1

1 answer

Total number of isomers of $C_4H_{10}O$ will be

asked Mar 5, 2014 by meena.p

1 answer

De-Broglie proposed dual nature for electron by putting his famous equation $\lambda = \large\frac{h}{mu}$. Later on Heisenburg proposed uncertainity principle as $\bigtriangleup p .\bigtriangleup x \geq \large\frac{h}{2}(h = \large\frac{h}{2\pi})$ . On the contrary particle nature of electron was established on the basis of photoelectric effect. When a photon strikes the metal surface , it gives up its energy to the electron. Part of this energy (say w) is used by the electron to escape from the metal and the remaining imparts the kinetic energy $\large\frac{1}{2}mu^2$ to the photoelectron. The potential applied on the surface to reduce the velocity of photoelectron to zero is known as stopping potential . The wavelength of helium atom whose speed is equal to its rms speed at $27^{\large\circ}$ C

asked Feb 9, 2014 by sharmaaparna1

1 answer

If $(m+n)^{th}$, $(n+1)^{th}$, $(r+1)^{th}$ term of an AP are in GP and $m, n, r$ are in HP, then ratio of first term of AP to common difference is

asked Jan 24, 2014 by yamini.v

1 answer

Integrate : $\int \large\frac{1+\tan ^2 x }{1+\tan x }$$dx$

asked Dec 30, 2013 by meena.p

1 answer

The linking of antibiotic resistance gene with the plasmid vector became possible with :

asked Dec 21, 2013 by thanvigandhi_1

1 answer

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