List of top Physics Questions

In a nuclear fission process, a high mass nuclide (A ≈ 236) with binding energy 7.6 MeV/Nucleon dissociated into middle mass nuclides (A ≈ 118), having binding energy of 8.6 MeV/Nucleon. The energy released in the process would be ____ MeV.

A particle executes simple harmonic motion with an amplitude of 4 cm. At the mean position, the velocity of the particle is 10 cm/s. The distance of the particle from the mean position when its speed becomes 5 cm/s is $ \sqrt{\alpha} $ cm, where $\alpha$ = ______

Two long, straight wires carry equal currents in opposite directions as shown in figure. The separation between the wires is 5.0 cm. The magnitude of the magnetic field at a point P midway between the wires is ____ μT
(Given: $\mu_0 = 4\pi \times 10^{-7} \, \text{TmA}^{-1}$)

Two immiscible liquids of refractive indices $ \frac{8}{5} $ and $ \frac{3}{2} $ respectively are put in a beaker as shown in the figure. The height of each column is 6 cm. A coin is placed at the bottom of the beaker. For near-normal vision, the apparent depth of the coin is $ \frac{\alpha}{4} $ cm. The value of $ \alpha $ is ______.

A particle is executing simple harmonic motion along the $x - axis$, with amplitude $A$, about the origin. Then the ratio of Kinetic energy and total energy at $x = \frac{A}{3}$ is

An electromagnetic wave has electric field given by $\overrightarrow E = (9.6 \hat j)sin \bigg[2π\; {30 × 10^6t -\frac{1}{10} x}\bigg]$, $x$ and $t$ are in SI units. The maximum magnetic field is

The period of oscillation of system shown below is $π\sqrt{\bigg(\frac{\alpha M}{5K}\bigg)}$ then $\alpha$ is

Consider a series of steps as shown. A ball is thrown from 0. Find the minimum speed to directly jump to 5th step

The co-ordinate system (x,y,z) is transformed to the system (u,v,w), as given by:
𝑢 = 2𝑥 + 3𝑦 − 𝑧
𝑣 = 𝑥 − 4𝑦 + 𝑧
𝑤 = 𝑥 + 𝑦
The Jacobian of the above transformation is ________.

Mass of the moon is $\frac{1}{100}$ times the mass of a planet. Its diameter is $\frac{1}{16}$ the diameter of the planet if the escape velocity of the planet is $V$ then the escape velocity of the moon will be

Four equal masses m are kept at corners of a square of side a. If net gravitational force on a mass is given by $\bigg(\frac{2\sqrt2+1}{32}\bigg) \frac{GM^2}{L^2}$ Find the value of a in the terms of $L$.

If the percentage error in measuring length and diameter of a wire is $0.1\%$ each, then the percentage error of the resistance of the wire is :

If $E = \frac{(A-x^2)}{Bt}$ where $E$ is energy, $x$ is displacement and $t$ is time. Find dimensions of $AB$

Two solid spheres each of mass 2 kg and radius 75 cm are arranged as shown. Find MOI of the system about the given axis.

Distance between twice-magnified virtual image of an object placed in front of mirror is 15 cm. Find focal length of spherical mirror in cm.

Two resistances having coefficient of variation of resistivity $α_1$ and $α_2$ are having equal resistance. Equivalent temperature coefficient of resistivity in series and parallel combinations are:

$T-V$ graph is given for two different pressures $P_1$ and $P_2$, Then :

An artillery of mass $M_1$, fires a shell of mass $M_2$. At the time of firing the ratio of kinetic energy is.

A particle is moving in circular path of radius r speed v such that speed is proportional to radius as $V∝ r^{\frac{3}{2}}$. Then how does time period of revolution depends on r i.e Trn then $n$ is.

The voltage applied across the resistance R is 200+5 and current in resistance is 20+0.2 then find % error in resistance.

Two rings of equal radius $R$ arranged perpendicular to each other with common center at $C$, carrying equal current $I$. Find magnetic field at $C$.

Find the potential difference across $700$ $Ω$ resistance (i.e. Vo)

A long wire carrying current $\sqrt{(2)}A$ is placed in a uniform magnetic field of $3 \times 10^{-5}\; T$. If the magnetic field is perpendicular to wire, find magnetic force on the length of wire.

Force F depends on distance $x$ and time $t$ as $F = ax^ 2 + bt\;\frac{1}{2}$ . Final dimension of $\frac{b^2}{a}$ is

In the given circuit, find electric current drawn from battery :