OnlineCBT
Physics · PYQ NEET UG 2025
Practice questions & answers
Find a question, read its answer and explanation, then practise related questions.
Physics PYQ NEET UG 2025 · Clear filters
46 questions
Physics · PYQ NEET UG 2025
The radius of Martian orbit around the Sun is about 4 times the radius of the orbit of Mercury. The Martian year is 687 Earth days. Then which of the following is the length of year on Mercury?
Read answer →Physics · PYQ NEET UG 2025
Two cities X and Y are connected by a regular bus service with a bus leaving in either direction every \( T \) min. A girl is driving scooty with a speed of \( 60\text{ km/h} \) in the direction X to Y notices that a bus goes past her every \( 30 \) minutes in the direction of her motion, and every \( 10 \) minutes in the opposite direction. Choose the correct option for the period \( T \) of the bus service and the speed (assumed constant) of the buses.
Read answer →Physics · PYQ NEET UG 2025
The kinetic energies of two similar cars A and B are \( 100\text{ J} \) and \( 225\text{ J} \) respectively. On applying breaks, car A stops after \( 1000\text{ m} \) and car B stops after \( 1500\text{ m} \). If \( F_A \) and \( F_B \) are the forces applied by the breaks on cars A and B, respectively, then the ratio \( F_A / F_B \) is
Read answer →Physics · PYQ NEET UG 2025
A sphere of radius \( R \) is cut from a larger solid sphere of radius \( 2R \) as shown in the figure. The ratio of the moment of inertia of the smaller sphere to that of the rest part of the sphere about the Y-axis is :
Read answer →Physics · PYQ NEET UG 2025
The output \( (Y) \) of the given logic implementation is similar to the output of an/a _________ gate.
Read answer →Physics · PYQ NEET UG 2025
Consider a water tank shown in the figure. It has one wall at \( x = L \) and can be taken to be very wide in the \( z \) direction. When filled with a liquid of surface tension \( S \) and density \( \rho \), the liquid surface makes angle \( \theta_0 (\theta_0 \ll 1) \) with the \( x \)-axis at \( x = L \). If \( y(x) \) is the height of the surface then the equation for \( y(x) \) is : (take \( \theta(x) = \sin\theta(x) = \tan\theta(x) = \frac{dy}{dx} \), \( g \) is the acceleration due to gravity)
Read answer →Physics · PYQ NEET UG 2025
A ball of mass \( 0.5\text{ kg} \) is dropped from a height of \( 40\text{ m} \). The ball hits the ground and rises to a height of \( 10\text{ m} \). The impulse imparted to the ball during its collision with the ground is (Take \( g = 9.8\text{ m/s}^2 \))
Read answer →Physics · PYQ NEET UG 2025
एक दोलन करते हुए स्प्रिंग-द्रव्यमान निकाय में, एक स्प्रिंग बालू से भरे डिब्बे से जुड़ी है। जैसे-जैसे डिब्बा दोलन करता है, बालू डिब्बे से लंबवत रूप से धीरे-धीरे बाहर लीक होती है जिससे निकाय की औसत आवृत्ति \( \omega(t) \) और औसत आयाम \( A(t) \) समय \( t \) के साथ बदलते हैं। निम्नलिखित में से कौन सा विकल्प इन परिवर्तनों को योजनाबद्ध रूप से सही ढंग से दर्शाता है?
Read answer →Physics · PYQ NEET UG 2025
Two identical charged conducting spheres A and B have their centres separated by a certain distance. Charge on each sphere is \( q \) and the force of repulsion between them is \( F \). A third identical uncharged conducting sphere is brought in contact with sphere A first and then with B and finally removed from both. New force of repulsion between spheres A and B (Radii of A and B are negligible compared to the distance of separation so that for calculating force between them they can be considered as point charges) is best given as :
Read answer →Physics · PYQ NEET UG 2025
An oxygen cylinder of volume \( 30\text{ litre} \) has \( 18.20\text{ moles} \) of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to \( 11\text{ atmospheric pressure} \) at temperature \( 27^\circ\text{C} \). The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, \( R = \frac{100}{12}\text{ J mol}^{-1}\text{K}^{-1} \), and molecular mass of \( O_2 = 32 \), \( 1\text{ atm pressure} = 1.01 \times 10^5\text{ N/m}^2 \)]
Read answer →Physics · PYQ NEET UG 2025
A model for quantized motion of an electron in a uniform magnetic field \( B \) states that the flux passing through the orbit of the electron is \( n(h/e) \) where \( n \) is an integer, \( h \) is Planck's constant and \( e \) is the magnitude of electron's charge. According to the model, the magnetic moment of an electron in its lowest energy state will be (\( m \) is the mass of the electron)
Read answer →Physics · PYQ NEET UG 2025
A uniform rod of mass \( 20\text{ kg} \) and length \( 5\text{ m} \) leans against a smooth vertical wall making an angle of \( 60^\circ \) with it. The other end rests on a rough horizontal floor. The friction force that the floor exerts on the rod is (take \( g = 10\text{ m/s}^2 \))
Read answer →Physics · PYQ NEET UG 2025
Three identical heat conducting rods are connected in series as shown in the figure. The rods on the sides have thermal conductivity \( 2K \) while that in the middle has thermal conductivity \( K \). The left end of the combination is maintained at temperature \( 3T \) and the right end at \( T \). The rods are thermally insulated from outside. In steady state, temperature at the left junction is \( T_1 \) and that at the right junction is \( T_2 \). The ratio \( T_1 / T_2 \) is
Read answer →Physics · PYQ NEET UG 2025
A body weighs 48 N on the surface of the earth. The gravitational force experienced by the body due to the earth at a height equal to one-third the radius of the earth from its surface is :
Read answer →Physics · PYQ NEET UG 2025
A wire of resistance R is cut into 8 equal pieces. From these pieces two equivalent resistances are made by adding four of these together in parallel. Then these two sets are added in series. The net effective resistance of the combination is :
Read answer →Physics · PYQ NEET UG 2025
Two identical point masses P and Q, suspended from two separate massless springs of spring constants \( k_1 \) and \( k_2 \), respectively, oscillate vertically. If their maximum speeds are the same, the ratio \( (A_Q/A_P) \) of the amplitude \( A_Q \) of mass Q to the amplitude \( A_P \) of mass P is:
Read answer →Physics · PYQ NEET UG 2025
Consider the diameter of a spherical object being measured with the help of a Vernier callipers. Suppose its 10 Vernier Scale Divisions (V.S.D.) are equal to its 9 Main Scale Divisions (M.S.D.). The least division in the M.S. is \( 0.1\text{ cm} \) and the zero of V.S. is at \( x = 0.1\text{ cm} \) when the jaws of Vernier callipers are closed. If the main scale reading for the diameter is \( M = 5\text{ cm} \) and the number of coinciding vernier division is \( 8 \), the measured diameter after zero error correction, is Which of the above statements is/are correct?
Read answer →Physics · PYQ NEET UG 2025
The Sun rotates around its centre once in \( 27 \) days. What will be the period of revolution if the Sun were to expand to twice its present radius without any external influence? Assume the Sun to be a sphere of uniform density.
Read answer →Physics · PYQ NEET UG 2025
A photon and an electron (mass \( m \)) have the same energy \( E \). The ratio (\( \lambda_{\text{photon}}/\lambda_{\text{electron}} \)) of their de Broglie wavelengths is: (\( c \) is the speed of light)
Read answer →Physics · PYQ NEET UG 2025
The intensity of transmitted light when a polaroid sheet, placed between two crossed polaroids at \( 22.5^\circ \) from the polarization axis of one of the polaroid, is (\( I_0 \) is the intensity of polarised light after passing through the first polaroid):
Read answer →Physics · PYQ NEET UG 2025
In some appropriate units, time (\( t \)) and position (\( x \)) relation of a moving particle is given by \( t = x^2 + x \). The acceleration of the particle is
Read answer →Physics · PYQ NEET UG 2025
A container has two chambers of volumes \( V_1 = 2 \) litres and \( V_2 = 3 \) litres separated by a partition made of a thermal insulator. The chambers contains \( n_1 = 5 \) and \( n_2 = 4 \) moles of ideal gas at pressures \( p_1 = 1 \) atm and \( p_2 = 2 \) atm, respectively. When the partition is removed, the mixture attains an equilibrium pressure of :
Read answer →Physics · PYQ NEET UG 2025
