List of top Physics Questions asked in BCECE

In a two-stroke engine, the power stroke occurs compared to a four-stroke engine -

White smoke indicates -

Four point masses each of mass $m$ are placed at the four corners of a square of side length $a$. The gravitational potential at the center of the square is:

Two wires of same material have lengths in the ratio $1:2$ and diameters in the ratio $2:1$. If they are stretched by the same load force, the ratio of their extensions ($\Delta l_1 : \Delta l_2$) is:

A sphere of mass $M$ and radius $R$ falls through a glycerin column and attains a terminal velocity $v_1$. Another sphere of same material but radius $3R$ falls through it. Its terminal velocity $v_2$ is:

A satellite is orbiting extremely close to the surface of a planet of average density $\rho$. The time period of revolution of the satellite depends only on $\rho$ as:

A solid sphere of mass $10\text{ kg}$ and radius $0.2\text{ m}$ is rolling without slipping on a horizontal floor with a velocity of $5\text{ m/s}$. Its total kinetic energy is:

A bullet of mass $10\text{ g}$ moving horizontally with a velocity of $400\text{ m/s}$ strikes a wooden block of mass $3.99\text{ kg}$ suspended by a long string and gets embedded in it. The vertical height to which the block rises is ($g = 10\text{ m/s}^2$):

A projectile is thrown with a speed of $40\text{ m/s}$ at an angle of $60^\circ$ with the horizontal. Its radius of curvature at the highest point of its trajectory is ($g = 10\text{ m/s}^2$):

A particle of mass $0.5\text{ kg}$ undergoes a collision where its velocity changes from $4\hat{i}\text{ m/s}$ to $-3\hat{j}\text{ m/s}$. The magnitude of impulse imparted to the particle is:

A uniform metal chain of length $2\text{ m}$ and mass $4\text{ kg}$ is lying on a horizontal table with $30\%$ of its length hanging down over the edge. The work done in pulling the hanging part back onto the table is ($g = 10\text{ m/s}^2$):

A body moves from rest with a uniform acceleration of $4\text{ m/s}^2$. The distance covered by it in the 5th second of its motion is: