List of top Questions asked in BITSAT- 2026

The ionic radii in \AA of $ \text{N}^{3-} $, $ \text{O}^{2-} $, and $ \text{F}^- $ are respectively:

Balance the following redox reaction in acidic medium and determine the stoichiometric coefficient of $\text{H}_2\text{O}$ in the final balanced equation.

\[\text{MnO}_4^-(aq) + \text{Fe}^{2+}(aq) \rightarrow \text{Mn}^{2+}(aq) + \text{Fe}^{3+}(aq)\]

A particle moves under the effect of a force $ F = Cx $ from $ x = 0 $ to $ x = x_1 $. The work done in the process is

Two point charges $+q$ and $-q$ are held fixed at a distance $d$ apart. The net electric potential at a point midway between the two charges and its net field are?

Two capillary tubes of radii $r_1$ and $r_2$ $(r_1 > r_2)$ are dipped vertically in the same liquid. The rise of liquid in the tubes $h_1$ and $h_2$ satisfies:

A gas undergoes an adiabatic process. During this process:

A car is moving on a horizontal curved road with radius 50 m. The approximate maximum speed of car will be, if friction between tyres and road is 0.34. [Take $ g = 10 $ ms$^{-2}$]

If $ E, L, M $ and $ G $ denote the quantities as energy, angular momentum, mass and constant of gravitation respectively, then the dimensions of $ EL^2 M^{-5} G^{-2} $ are:

An object of mass 5 kg is thrown vertically upwards from the ground. The air resistance produces a constant retarding force of 10 N throughout the motion. The ratio of time of ascent to the time of descent will be equal to: [Use $ g = 10 $ ms$^{-2}$]

An electron moving along the x-axis has a position given by $x = 20te^{-t}$ m, where $t$ is in second. How far is the electron from the origin when it momentarily stops?

Three point particles of masses 1.0 kg, 1.5 kg and 2.5 kg are placed at three corners of a right-angle triangle of sides 4.0 cm, 3.0 cm and 5.0 cm as shown in the figure. The center of mass of the system is at a point:

The ranges and heights for two projectiles projected with the same initial velocity at angles 42° and 48° with the horizontal are $ R_1, R_2 $ and $ H_1, H_2 $ respectively. Choose the correct option:

A projectile is fired from the surface of the earth with a velocity of $v_0$ at an angle $\theta$ with the horizontal. If the maximum height reached is equal to its horizontal range, then the angle of projection $\theta$ is given by:

A ball is projected horizontally from the top of a tower with a velocity of $ 10 \text{ m/s} $. If it hits the ground $ 2 \text{ seconds} $ later, what is the height of the tower? (Take $ g = 10 \text{ m/s}^2 $)

A particle moves along a circle of radius $R$ with a constant angular acceleration $\alpha$. If the initial angular velocity is zero, the total acceleration of the particle at time $t$ is:

A body of mass $ m $ is dropped from a height $ h $. What is its kinetic energy just before it hits the ground?

The ratio of the radii of gyration of a hollow cone and a hollow cylinder of the same mass and radius about a tangential axis parallel to their central axis is:

A fundamental harmonic standing wave is generated in a string fixed at both ends. If the tension in the string is increased by $21\%$, the percentage change in the fundamental frequency will be:

The magnetic field at the center of a circular current-carrying loop of radius $R$ is $B_0$. The magnetic field at an axial point at a distance $x = R$ from the center of the loop is:

An ideal gas heat engine operates in a Carnot cycle between $227^\circ\text{C}$ and $127^\circ\text{C}$. It absorbs $6 \times 10^4 \text{ cal}$ of heat at the higher temperature. The amount of heat converted into work is:

A particle moves under the action of a variable force $F = (3x^2 - 2x + 5)$ in Newtons from $x = 0$ to $x = 2$ meters. The work done by the force is:

The focal length of a convex lens is $f$ in air. When it is completely immersed in water of refractive index $\frac{4}{3}$, its focal length becomes (take refractive index of glass = 1.5):

A light ray enters a glass slab of refractive index $ \mu = 1.5 $ from air. What is the speed of light inside the glass slab? (Speed of light in air $ c = 3 \times 10^8 \text{ m/s} $)

A particle moves along a straight line such that its position is given by $ x(t) = 3t^2 - t^3 $. What is its velocity at $ t = 2 $ seconds?

A charge $Q$ is placed at the center of an uncharged conducting spherical shell of inner radius $R_1$ and outer radius $R_2$. The surface charge density on the outer surface of the shell is: