AIIMS Physics Questions

If energy of electron in ground state is −13.6 then find out speed of electron in fourth orbit of H⁻atom

Find charge on the capacitor after 1 sec of opening the switch at t = ∞?

If energy of electron in ground state is^{-13}.6 then find out speed of electron in fourth orbit of H⁻atom

A person wear normal spectacles in which the distance of glasses and eyes is approximately 2 cm, then power required is -5D. If he wears contact lens, then the required power is:

Consider the circuit as shown below.

If radius of the earth is 6347 km, then what will be difference between acceleration of free fall and acceleration due to gravity near the earth's surface?

In a LCR oscillatory circuit find the energy stored in inductor at resonance. If voltage of source is 10 V and resistance is 10 Ω and inductance=1 H.

In a LCR oscillatory circuit find the energy stored in inductor at resonance. If voltage of source is 10 V and resistance is 10Ω and inductance = 1H.

Calculate charge on capacitor in steady state.

The formula to calculate the equivalent spring constant is given by,

An oscillator circuit consists of an inductance of 0.5 mH and a capacitor of 20 μF. The resonant frequency of the circuit is nearly

15 eV is given to e⁻ in 4^{th} orbit then find it's final energy when it comes out of H⁻atom

A semi circular arc of radius r and a straight wire along the diameter, both are carrying same current i. Find out magnetic force per unit length on the small element P, which is at the centre of curvature.

If energy of 15 eV is given to electron in 4^{th} orbit then find it's final energy when it comes out of H⁻atom.

For a wire \( \frac{R}{l} = \frac{1}{2} \) and length of wire is \( l = 5 \) cm. If potential difference 1 V is applied across it, current through wire will be: (R = Resistance)

If modulation index \( \mu = \frac{1}{2} \) and \( V_M = 2 \) then \( V_C = ? \)

Find the charge in steady state of the capacitor.

For a toroid N = 500, radius = 40 cm, and area of cross section = 10 cm². Find inductance.

For a toroid N = 500, radius = 40 cm, and area of cross section = 10 cm². Find inductance

Find the maximum tension in the spring if initially spring at its natural length when block is released from rest.

A body of mass 5×10³ kg moving with speed 2 m/s collides with a body of mass 15×10³ kg in elastically and sticks to it. Then loss in K.E. of the system will be:

Find BE per nucleon of ⁵⁶Fe where m(⁵⁶Fe) = 55.936 u, mₙ = 1.00727 u, mₚ = 1.007274 u.

Consider the figure,

A current of 10 amp is passing through a metallic wire of cross sectional area 4×10⁻⁶ m². If the density of the aluminum conductor is 2.7 gm/cc considering aluminum gives 1 electrons per atom for conduction find the drift speed of the electrons if molecular weight of aluminum is 27 gm.

Find BE per nucleon of ⁵⁶Fe where m(⁵⁶Fe) = 55.936u, mₙ = 1.00727u, mₚ = 1.007274u

A string wave equation is given y = 0.002sin(300t - 15x) and mass density is μ = 0.1 kg/m. Then find the tension in the string.

If speed of sound in air in 330 m/s then, find the number of tones present in an open organ pipe of length 1 m whose frequency if ≤ 1000.

The expression for the coefficient of performance is, Coefficient of performance = Q₂ / (Q₁ - Q₂). Substitute 800 for Q₁ and 500 for Q₂ in above expression. Coefficient of performance = 500 / (800 - 500) = 5/3

A string wave equation is given y = 0.002 sin (300t - 15x) and mass density is (μ = 0.1kg/m). Then find the tension in the string.

A disc of radius 5 m is rotating with angular frequency 10 rad/sec. A block of mass 2 kg to be put on the disc friction coefficient between disc and block is μₖ = 0.4, then find the maximum distance from axis where the block can be placed without sliding:

Angular magnification of telescope if focal length of objective and eye lenses are 10 cm and 10 mm respectively and tube length is 11 cm:

If maximum energy is stored in capacitor at t = 0 then find the time after which current in the circuit will be maximum.(Circuit parameters: $L = 25 \text{ mH}$, $C = 10 \text{ }\mu\text{F}$)

An electron is revolving in n = 3 orbit. What will be the magnetic field at the centre of hydrogen atom?

If maximum energy is stored in capacitor at t = 0 then find the time after which current in the circuit will be maximum.

The number of turns is inversely proportional to the current. Nₚ/Nₛ = iₛ/iₚ. 140/280 = iₛ/4. iₛ = 2 Å

In the case of damped oscillation, the amplitude keeps on decreasing that implies the graph for V versus x is,

A light of wavelength 500 nₘ is incident on a Young's double slit. The distance between slits and screen is D = 1.8 m and distance between slits is d = 0.4 mm. If screen moves with a speed 4 m/s, with what speed first maxima will move?

When capacitor is fully charged, find current drawn from the cell.

When capacitor is fully charged, find current drawn from the cell. 9V C.

An electron is moving in a circle of radius 2 m with speed 4 m/s. Find the acceleration of the electron.

An electron collides elastically with H⁻like atom and excites it from ground state to n = 3. Find out the energy transfer to H⁻like atom

A container of height 10 cm is filled with water. There is a hole at bottom. Find the pressure difference between points A & B:

Given V_CM = 2 m/s, m = 2 kg, R = 4 m. Find angular momentum of ring about origin if it is in pure rolling.

If two protons are moving with speed v = 4.5×10⁵ m/s parallel to each other then the ratio of electrostatic and magnetic force between them

Given $V_{\text{CM}} = 2 \text{ m/s}$, $m = 2 \text{ kg}$, $R = 4 \text{ m}$. (A ring is shown in the x-y plane, rolling on the positive x-axis. Its center of mass is moving with velocity $v$ in the positive x-direction.) Find angular momentum of ring about origin if it is in pure rolling.

A coil is placed in y-z plane making an angle of 30° with x-axis. The current through coil is I, and number of turns are N. If a magnetic field of strength ‘B’ is applied in positive x-direction, then find the torque experienced by the coil: (Radius of coil is R) (N = 100, I = 1 Å, R = 2m, B = 1/π T)

If voltage across zener diode is 6V then find out value of maximum resistance in this condition.

Consider the following expression. V₂/V₁ = N₂/N₁ Substitute the values as, V₂/120 = 1/50 V₂ = 12/5 Let transformer is ideal. P_in = P_out Therefore, P_out = V₂²/R₂ Substitute the values as, P_out = (12/5)²/10 = 5.76 W

If voltage across zener diode is 6V then find out value of maximum resistance in this condition.

Find the gravitational field at a distance of 2000 km from centre of earth. (Given Rₑₐᵣₜₕ = 6400 km, r = 2000 km, Mₑₐᵣₜₕ = 6 × 10²⁴ kg);