List of top Questions asked in COMEDK UGET- 2009

Two rods of same area of cross section and lengths, and conductivities $K_1$ and $K_2$ are connected in series. Then, in steady state conductivity of the combination is

If the Earth shrinks in its size (radius) mass remaining the same, the value of g on its surface will

A stone dropped from the top of a tower reaches ground in 4 s. Height of the tower is $(g = 10 \, m/s^2)$

The value of $\int \frac{10^{x/2}}{\sqrt{10^{-x} - 10^{x}}}dx$ is

Lysine is

$_6C^{14}$ and $7_N^{15}$ are examples of

The square of the resultant of two equal forces acting at a point is equal to three times their product. Angle between them is

$n $ type and $p$ type semiconductors can be obtained by doping pure silicon respectively with

A calcite crystal is placed over a dot on a paper sheet and the crystal is rotated. On viewing through the calcite one sees

With the addition of impurities surface tension of a liquid

Potential energy of two charges $10 \, nC$ each separated by a distance of 0.09 m in air is

Viscosity decreases with increase in temperature is the reason for (i) hot water moving faster than cold water (ii) more viscous oils are used in motor cars during summer than in winter

The standard temperature used in thermo- chemical calculations is

A reaction is spontaneous at all temperatures when

Specific resistance of a conductor material increases with

Which of the following is an intensive property?