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#	Question	Subject and topic	Difficulty
4851	An athlete's stroke volume is 70 mL per beat and heart rate is 72 beats per minute. What is the cardiac outpu…	Physical Education/National Cadet Corps (NCC)/Yoga Effects of exercise	Medium
4852	Which change in the respiratory system is a long-term effect of exercise?	Physical Education/National Cadet Corps (NCC)/Yoga Effects of exercise	Medium
4853	A trained athlete and an untrained person both have a resting cardiac output of about 5 L/min, but the athlet…	Physical Education/National Cadet Corps (NCC)/Yoga Effects of exercise	Hard
4854	Which of Newton's laws is also called the law of inertia?	Physical Education/National Cadet Corps (NCC)/Yoga Newton’s laws in sport	Easy
4855	A swimmer pushes water backward and moves forward. Which law explains this?	Physical Education/National Cadet Corps (NCC)/Yoga Newton’s laws in sport	Easy
4856	A 60 kg sprinter accelerates at 5 m/s² out of the blocks. What net force is acting on the sprinter?	Physical Education/National Cadet Corps (NCC)/Yoga Newton’s laws in sport	Medium
4857	A cricket ball of mass 0.16 kg travels at 30 m/s. What is its momentum?	Physical Education/National Cadet Corps (NCC)/Yoga Newton’s laws in sport	Medium
4858	The same kick force is applied to a football and to a heavier medicine ball. Why does the football move off f…	Physical Education/National Cadet Corps (NCC)/Yoga Newton’s laws in sport	Hard
4859	In a first-class lever, what lies between the effort and the load?	Physical Education/National Cadet Corps (NCC)/Yoga Levers in sport	Easy
4860	Bending the elbow with the biceps is an example of which class of lever?	Physical Education/National Cadet Corps (NCC)/Yoga Levers in sport	Easy
4861	Rising on the toes is an example of a second-class lever because	Physical Education/National Cadet Corps (NCC)/Yoga Levers in sport	Medium
4862	A lever has an effort arm of 0.6 m and a load arm of 0.2 m. What is its mechanical advantage?	Physical Education/National Cadet Corps (NCC)/Yoga Levers in sport	Medium
4863	Most levers in the human body are third class. What advantage does this give in throwing and striking?	Physical Education/National Cadet Corps (NCC)/Yoga Levers in sport	Hard
4864	Two point charges of 2 μC and 3 μC are placed 0.3 m apart in vacuum. The force between them is:	Physics Electric charge and Coulomb’s law	Easy
4865	If the distance between two point charges is halved, the Coulomb force between them becomes:	Physics Electric charge and Coulomb’s law	Easy
4866	How many electrons together carry a total charge of magnitude 1 C?	Physics Electric charge and Coulomb’s law	Medium
4867	A glass rod rubbed with silk becomes positively charged because:	Physics Electric charge and Coulomb’s law	Medium
4868	Two charges exert a force of 8 N on each other in air. When placed at the same separation in a medium of diel…	Physics Electric charge and Coulomb’s law	Hard
4869	The electric field at a distance of 0.2 m from a point charge of 4 nC in vacuum is:	Physics Electric field and dipoles	Easy
4870	An electric dipole of moment 2 × 10⁻⁸ C m is placed at 30° to a uniform field of 5 × 10⁴ N/C. The torque on i…	Physics Electric field and dipoles	Medium
4871	A dipole placed in a uniform electric field experiences:	Physics Electric field and dipoles	Easy
4872	At large distances, the electric field of a short dipole varies with distance r as:	Physics Electric field and dipoles	Medium
4873	At the same large distance from a short dipole, the ratio of the axial field to the equatorial field is:	Physics Electric field and dipoles	Hard
4874	A closed surface encloses a net charge of 8.85 nC. The total electric flux through it is about:	Physics Gauss’s theorem	Easy
4875	The electric field inside a uniformly charged thin spherical shell is:	Physics Gauss’s theorem	Easy
4876	A very long straight wire carries a uniform charge of 2 μC per metre. The field at 0.1 m from it is about:	Physics Gauss’s theorem	Medium
4877	The electric field due to an infinite plane sheet of uniform charge density σ:	Physics Gauss’s theorem	Medium
4878	A charge q is placed at the centre of a cube. The electric flux through any one face of the cube is:	Physics Gauss’s theorem	Hard
4879	The electric potential at a distance of 0.5 m from a point charge of 5 nC is:	Physics Electric potential	Easy
4880	The work done in moving a charge of 2 μC between two points with a potential difference of 50 V is:	Physics Electric potential	Easy
4881	The angle between electric field lines and an equipotential surface is always:	Physics Electric potential	Medium
4882	The electrostatic potential energy of charges 1 μC and 2 μC kept 0.1 m apart in vacuum is:	Physics Electric potential	Medium
4883	At the midpoint of the line joining two equal and opposite charges, which statement is correct?	Physics Electric potential	Hard
4884	Inside a charged metal conductor in electrostatic equilibrium, the electric field is:	Physics Conductors, dielectrics and polarisation	Easy
4885	Excess charge given to an isolated conductor resides:	Physics Conductors, dielectrics and polarisation	Easy
4886	When a dielectric slab is placed in an external electric field, the field inside the slab:	Physics Conductors, dielectrics and polarisation	Medium
4887	Which of the following molecules is polar?	Physics Conductors, dielectrics and polarisation	Medium
4888	A person sitting inside a closed metal car is safe from a lightning strike mainly because of:	Physics Conductors, dielectrics and polarisation	Hard
4889	Capacitors of 2 μF and 3 μF are connected in series. The equivalent capacitance is:	Physics Capacitors	Easy
4890	The energy stored in a 10 μF capacitor charged to 100 V is:	Physics Capacitors	Easy
4891	A parallel plate capacitor has plates of area 0.02 m² separated by 1 mm of air. Its capacitance is about:	Physics Capacitors	Medium
4892	The space between the plates of an air capacitor is completely filled with a dielectric of constant 5. Its ca…	Physics Capacitors	Medium
4893	A capacitor is charged by a battery and then disconnected. If the plate separation is now doubled, the stored…	Physics Capacitors	Hard
4894	A steady current of 2 A flows in a wire for 5 minutes. The charge that passes through any cross-section is:	Physics Electric current and drift velocity	Easy
4895	A copper wire of cross-section 1 mm² carries 1.5 A. If n = 8.5 × 10²⁸ m⁻³, the drift speed of electrons is ab…	Physics Electric current and drift velocity	Medium
4896	The SI unit of electron mobility is:	Physics Electric current and drift velocity	Medium
4897	A bulb lights up almost instantly when switched on, although the drift speed of electrons is very small. This…	Physics Electric current and drift velocity	Easy
4898	A steady current flows through a wire whose radius at end X is twice the radius at end Y. The ratio of drift …	Physics Electric current and drift velocity	Hard
4899	The resistance of a copper wire of length 10 m and cross-section 1 mm² (ρ = 1.7 × 10⁻⁸ Ω m) is:	Physics Ohm’s law and resistance	Easy
4900	A uniform wire is stretched to twice its original length. Its resistance becomes:	Physics Ohm’s law and resistance	Medium