Recent questions tagged q105

A gas is heated through $1^{\large\circ}C$ in a closed vessel and so the pressure increases by $0.4\%$ . The initial temperature of the gas was

asked Mar 1, 2014 by sharmaaparna1

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The molecules that will have dipole moments are : (i) 2,2 Dimethyl propane (ii) trans-2-pentene (iii) cis - 3 - Hexene (d) 2,2,3,3 -Tetramethyl butane

asked Feb 27, 2014 by meena.p

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In the following reaction :The structure of the major product X is

asked Feb 26, 2014 by sreemathi.v

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Find the value of a,b whose foci are (6,4) and (-4,4) and ecentricity is 2?

asked Feb 10, 2014 by sreemathi.v

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Sum of series $\;\frac{1}{2}+\frac{3}{4}+\frac{7}{8}+\frac{15}{16}+.....\;is:$

asked Jan 20, 2014 by yamini.v

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If uncertainties in the measurement of position and momentum are equal,calculate uncertainty in the measurement of velocity.

asked Jan 16, 2014 by sreemathi.v

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A unit vector coplanar with the vectors $\hat i-\hat j\:\;and\:\:\hat i+2\hat j$ and is $\perp$ to the first vector, $\hat i-\hat j$ is ?

asked Jan 5, 2014 by rvidyagovindarajan_1

1 answer

Let [.] denote the greatest integer function and $f(x)=[\tan^2x]$ then

asked Dec 31, 2013 by sreemathi.v

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Integrate : $\int \large\frac{\sec^2 x }{\sqrt {\tan x} }$$dx$

asked Dec 19, 2013 by meena.p

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Which one of the following groups of three animals each is correctly matched with their one characteristics morphological feature ?

asked Dec 18, 2013 by thanvigandhi_1

1 answer

A thin prism of angle $ 6^{\circ}$ made up of glass of refractive index 1.5 is combined with another prism made up of glass of refractive index 1.75 to produce dispersion without deviation. The angle of second prism is :

asked Nov 17, 2013 by thanvigandhi_1

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At $ 10^{\circ}C$, the value of the density of a fixed mass of an ideal gas divided by its pressure is 'x' . At $110^{\circ}C$ this ratio is :

asked Nov 2, 2013 by thanvigandhi_1

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A progressive wave of frequency 500 Hz is travelling with a speed of 330 m/s in air. The distance between the two points which have a phase difference of $30^{\circ}$ is

asked Oct 20, 2013 by thanvigandhi_1

1 answer

An achromatic combination of lenses produces

asked Oct 18, 2013 by meena.p

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A bar magnet of 10 cm long is kept with its north (N)-pole pointing North. A neutral point is formed at a distance of 15 cm from each pole. Given the horizontal component of earth's field is $0.4$ Gauss, the pole strength of the magnet is :

asked Oct 11, 2013 by meena.p

1 answer

Two capillary tubes of lengths in the ratio 2 : 1 and radii in the ratio 1 : 2 are connected in series. Assume the flow of the liquid through the tube is steady. Then, the ratio of pressure difference accros the tubes is

asked Oct 10, 2013 by thanvigandhi_1

1 answer

The distance between field lens and eye lens in Ramsden eyepiece is $4 cm$. Then, the distance of the cross-wires from the eye lens is :

asked Sep 30, 2013 by meena.p

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The wavelengths of two sound notes in air are $\large\frac{40}{195}\;$$m$ and $\large\frac{40}{193}\;$$m$. Each note produces 9 beats per second separately with a third note of fixed frequency. The velocity of sound in air in m/s is:

asked Sep 24, 2013 by meena.p

1 answer

Fresnel diffraction is produced due to light rays falling on a small obstacle. The intensity of light at a point on a screen beyond an obstacle depends on

asked Sep 18, 2013 by meena.p

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Which of the following are statements?\[\begin{array}{1 1}(1)May \;God \;bless\; you.&(2)Rose\; is\; a\; flower.\\(3)Milk \;is \;White.&(4)1 \;is\; a\; prime \;number.\end{array}\]

asked May 24, 2013 by poojasapani_1

1 answer

The eccentricity of the hyperbola whose latus rectum is equal to half of its conjugate axis is

asked May 14, 2013 by poojasapani_1

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If A and B are such that \[P(A'\cup B')=\frac{2}{3} \;and\;P(A\cup B)=\frac{5}{9},\]\[then\;P(A')+P(B')=\text{__________}.\]

asked Jan 10, 2013 by sreemathi.v

1 answer

True or False: Trigonometric and inverse-trigonometric functions are differentiable in their respective domain.

asked Jan 3, 2013 by sreemathi.v

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