List of top Questions asked in COMEDK UGET- 2008

If $C$ is the centre of the ellipse $\frac{x^{2}}{16} + \frac{y^{2}}{9} = 1 $ and S is one of the foci, then the ratio of CS to semi-minor axis of the ellipse is
$+I$ effectis exhibited by
Nitrogen is obtained by heating
Iodine value is used to determine
The Ostwald's dilution law is obeyed by
Which one of the following forms oleum when dissolved in cone $ {H_2SO_4}$ ?
The adsorption of inert gases on the surface of activated charcoal increases with
The EMF of a cell containing sodium/copper electrodes is 3.05 V. If the electrode potential of copper electrode is + 0.34 V the electrode potential of sodium is
Woollen clothes keep the body warm because they
'Raman frequencies' refers to
A steel ball of mass m falls in a viscous medium with a terminal velocity V. Another steel ball of mass 64m will fall through the same liquid with terminal velocity
A charge situated at a certain distance along the axis of an electric dipole experience a force $F$. If the distance of the charge from the dipole is doubled, the force acting on it will become
If the Earth shrinks in its radius by 4%, mass remaining the same, the value of 'g' on its surface
Two point charges are $3\, m$ apart and their combined charge is $8 \mu C$. The force of repulsion between them is $0.012\, N$. Charges are
A body when released from the top of a tower of height $h$ reaches the ground in time 1 second. Time in second at which it is a height $ \frac{h}{2}$ above the groun.d is
A DC source of $30 \, V$ is connected across two resistors of $200\, \Omega$ each connected in series. A voltmeter of resistance $200 \, \Omega$ is connected across a resistor. It reads
A slab consists of two plates of different materials of same thickness and having thermal conductivities $K_1$ and $K_2$. The equivalent thermal conductivity of the slab is
In an interference experiment two parallel vertical slits $S_1$ and $S_2$ are used. A thin glass plate is introduced in the path of light from $S_1$. Then
A person inside water $n_w = \frac{4}{3} $ sees the 'setting sun' at about
The range of a particle projected at an angle of 15? with the horizontal is 1.5 km. Its range when projected with the same velocity at an angle of 45? with the horizontal is
$\int \frac{2^{x+1} - 5^{x-1}}{10^{x}}dx = $
DNA replication is semi-conservative because ......
In the reaction, $ {PCl_{3(g)} + Cl_{2(g)} <=> PCl_{5(g)}}$ at equilibrium
Angular momentum of an electron in an orbit of H atom is proportional to
Buffer capacity of a buffer will be maximum when