List of top Questions asked in COMEDK UGET

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
Let $y' = e^{-2x} $ and $ y = 0$ when $x =e$. Then the value of $x$ when $ y =\frac{1}{2}$ is
IUPAC name of $ {K_3[Fe(CN)_6]}$ is
Which of the following is not used to distinguish ethane from ethene ?
Equivalent mass of $ {K_2Cr_2O_7}$ in acidic solution is equal to
A voltmeter can read up to $V$ volt. When the series resistance used in the voltmeter is doubled, range of voltmeter is
If $a, b, c$ are in A.P., then $7^a, 7^b,$ and $7^c$ are in
$\displaystyle\lim_{x \to 0} \frac{6^{x} -3^{x} -2^{ x}+1}{x^{2}} = $
In sucrose, the glycosidic linkage is
Which of the following is a constituent of oil of wintergreen?
Among solids, the higher melting point is exhibited by
The locus of the centre of the circle of radius 3 which rolls on the outside of the circle $x^2+y^2 + 3x - 6y - 9 = 0$ is
The contrapositive of the statement "If $x^2 - 1 = 0$, then $x = -1$ or $x = + 1$ " is
The perpendicular distance between the lines $9x^2- 24xy + 16y^2 + 21x- 28y+ 10 = 0$ is
The length of the latus rectum of the parabola $bx^2 - 4ay + dx + e = 0$ is
The conjugate acid and base of $ {HPO^{2-}_{4}}$ respectively are
The metal ion present in insulin is?
Complex forming tendency of central metal ion increases with
If $Z$ is a complex number with $I Z I = 1$ and $Z + \frac{1}{Z} = x + iy$, then $xy = $
An inductor coil when connected to a $12 \, V$ batt.ery draws a steady current $6 \, A$. This coil when connected in series with a capacitor and an $AC$ source of $10 \, V$, current is in phase with applied voltage. $AC $ meter included in the circuit reads
A bilaterally symmetrical deuterostorne is classified in the phylum
A spontaneous reaction is impossible if.
Charges $4Q$ and $Q$ are kept separated by a certain distance and are placed at $A$ and $B$, respectively. Electric intensity at $B $ is $E$. Electric intensity at $A$ is