List of top Questions asked in COMEDK UGET

If $x= a\left(\cos \theta +\theta \sin \theta\right)$ and $ y = a \left(\sin \theta- \theta \cos \theta \right) $ where $0 < \theta < \frac{\pi}{2}$ , then $ \frac{d^{2}y}{dx^{2}}$ at $ \theta = \frac{\pi}{4}$ is equal to

In a sonometer experiment, when the tension is changed by $10\, kg \, wt$, fundamental frequency emitted increases by $50 \%$ . Original tension in kg wt is

Angular frequency of an electron in Bohr atom with quantum number n is proportional to

Excited H atom emits a photon of energy $12.1 \, eV$, orbital angular momentum of electron changes by

If $f\left(9\right)= 9 , f'\left(9\right) = 4 $ then $\lim_{x\to9} \frac{\sqrt{f\left(x\right)} -3}{\sqrt{x} - 3} = $

Hofmann's bromamide reaction is used to convert

IUPAC name of $ {K_3[Fe(CN)_6]}$ is

If the rate equation for reaction is, rate =$ k[A][B]^{1/2}$, the order of reaction is

Let $y' = e^{-2x} $ and $ y = 0$ when $x =e$. Then the value of $x$ when $ y =\frac{1}{2}$ is

For a cell reaction involving two electron change, the standard e.m.f. of the cell is found to be 0.295 Vat 298 K. The equilibrium constant of the reaction at the same temperature will be

In the manufacture of NaOH, by electrolysis of an aqueous solution of sodium chloride, the cathode and anode are separated by using a diaphragm because

Least stable structure in liquid crystalline state is observed in

Fehling's reagent contains

As resistance in a series resonant circuit increases (i) sharpness of resonance decreases (ii) bandwidth increases

In the group $\{1, 2, 3, 4, 5, 6\}$ under multiplication modulo $7$, if $5x = 4$, then $x =$

Equivalent mass of $ {K_2Cr_2O_7}$ in acidic solution is equal to