a, b, c (all positive) are the pth, qth, and rth terms of a geometric progression then
Two bodies are thrown vertically upwards with their initial speeds in the ratio 2 : 3. The ratio of the maximum heights reached by them and the ratio of their time taken by them to return back to the ground respectively are
The least stable free radical is
{tex} CH_{3}CH_{2}{/tex}
{tex}CH_{3}CH_{2}CH_{2}{/tex}
{tex} (CH_{3})_{2}CH{/tex}
{tex} CH_{3}{/tex}
At a certain temperature, the dissociation constants of formic acid and acetic acid are 1.8 x 10-4 and 1.8 x 10-5 respectively. The concentration of acetic acid solution in which the hydrogen ion has the same concentration as in 0.001 M formic acid solution is equal to
If for a plane, the intercepts on the co-ordinate axes are 8, 4, 4 then the length of the perpendicular from the origin on to the plane is
A needle made of bismuth is suspended freely in a magnetic field. The angle which the needle makes with the magnetic field is
In Young's double slit experiment, the width of one of the slits is slowly increased to make it twice the width of the other slit. Then in the interference pattern:
The sequence of ionic mobility in aqueous solution is
A binary liquid solution is prepared by mixing n - heptane and ethanol. Which one of the following statement is correct regarding the behaviour of the solution?
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