AIEEE 2008 PYQ Mock Test

A jar is filled with two non-mixing liquids $1$ and $2$ having densities ${\rho }_1$ and ${\rho }_2$ respectively. A solid ball of density ${\rho }_3$ is dropped and comes to equilibrium such that it floats at the interface, partially in both liquids. Which of the following is true for ${\rho }_1$, ${\rho }_2$ and ${\rho }_3$?

A working transistor with legs marked P, Q and R is tested. No conduction is found between P and Q. Connecting the negative terminal of the multimeter to R and positive to P or Q shows some resistance. Which is true?

Current $I$ enters at point A and leaves at point D of a conducting block. To find the voltage $\Delta V$ between points B and C, we assume current spreads over a hemispherical surface. The electric field at distance $r$ is $E=\rho j$. The potential difference $V_B-V_C$ is:

A student measures the focal length of a convex lens by measuring object distance ‘$u$ ’ and image distance ‘$v$ ’. The graph between $u$ and $v$ should look like:

A block of mass $0.50\text{kg}$ moving at $2.00\text{m/s}$ on a smooth surface strikes another mass of $1.00\text{kg}$ and they move together. The energy loss during collision is: