Physics Syllabus (JEE Main)
Download Q&A
Q. If a solid sphere of mass M and radius R is rotating about an axis through its center, what is its moment of inertia?
Q. If a solid sphere of radius R and mass M is rotating about an axis through its center, what is its moment of inertia?
Q. If a sound wave has a frequency of 440 Hz, what is its period?
Q. If a stone is tied to a string and whirled in a horizontal circle of radius 2 m at a speed of 4 m/s, what is the tension in the string?
Q. If a stone is tied to a string and whirled in a horizontal circle of radius 2 m at a speed of 4 m/s, what is the tension in the string if the mass of the stone is 1 kg?
Q. If a system absorbs 100 J of heat and does 40 J of work, what is the change in internal energy?
Q. If a system absorbs 200 J of heat and does 50 J of work, what is the change in internal energy?
Q. If a system does 150 J of work on the surroundings and absorbs 100 J of heat, what is the change in internal energy?
Q. If a temperature is recorded as 25°C with an error of ±0.5°C, what is the maximum possible temperature?
Q. If a temperature is recorded as 25°C with an error of ±0.5°C, what is the minimum temperature?
Q. If a thermometer reads 100°C with an error of ±0.5°C, what is the maximum possible temperature?
Q. If a torque of 15 Nm is produced by a force acting at a distance of 0.3 m from the pivot, what is the magnitude of the force?
Q. If a torque of 25 Nm is applied and the lever arm is 5 m, what is the angle at which the force is applied if the force is 10 N?
Q. If a torque of 25 Nm is applied to a wheel with a radius of 0.5 m, what is the force applied at the edge of the wheel?
Q. If a torque of 25 Nm is generated by a force acting at a distance of 0.5 m, what is the force applied?
Q. If a torque of 30 Nm is applied to a lever arm of 3 m, what is the force applied?
Q. If a torque of 5 Nm is applied to a rotating object with a moment of inertia of 2 kg·m², what is the angular acceleration?
Q. If a torque of 8 Nm is produced by a force acting at a distance of 0.2 m, what is the force?
Q. If a train travels at a speed of 72 km/h, how long will it take to cover a distance of 180 km?
Q. If a volume is measured as 200 L with an error of 5 L, what is the range of possible volumes?
Q. If a weight is measured as 10 kg with a 0.2 kg error, what is the maximum possible true weight?
Q. If a wheel of radius R rolls without slipping, what is the distance traveled by the center of mass after one complete rotation?
Q. If a wire carries a current of 5 A and is placed in a magnetic field of 0.1 T, what is the force per unit length on the wire?
Q. If a wire carries a current of 5 A, what is the magnetic field at a distance of 0.1 m from the wire?
Q. If a wire carrying current I is bent into a semicircular arc of radius R, what is the magnetic field at the center of the arc?
Q. If a wire is bent into a semicircular shape, what is the magnetic field at the center of the semicircle due to the current I?
Q. If a wire is bent into a semicircular shape, what is the magnetic field at the center of the semicircle due to current I?
Q. If a wire is stretched and its length increases by 2%, what is the strain?
Q. If a wire of length L and cross-sectional area A is stretched by a force F, what is the expression for the elongation?
Q. If a wire's length is doubled while keeping its cross-sectional area constant, how does its resistance change?