Physics · 2024 · 30 Jan · Shift 1
30 questions from this JEE Main paperGuest · filters and generic practice availableBrowsing as a guest · PYQ filters and generic practice are available. Sign in only for personalised features and saved progress.
Physics · 2024 · 30 Jan · Shift 1
30 questions from this JEE Main paper
Atoms and Nuclei2 questionsDual Nature of Radiation1 questionsAlternating Current2 questionsRotational Motion2 questionsWave Optics1 questionsElectrostatics1 questionsWork Power and Energy1 questionsHeat and Thermodynamics2 questionsElectromagnetic Waves1 questionsUnits and Measurements1 questionsCurrent Electricity3 questionsElectronic Devices1 questionsMagnetics1 questionsLaws of Motion1 questionsCenter of Mass1 questionsProperties of Matter2 questionsGravitation1 questionsMagnetic Properties of Matter1 questionsCapacitor1 questionsGeometrical Optics1 questionsWaves1 questionsMotion in A Straight Line1 questionsElectromagnetic Induction1 questions
- Q61.The ratio of the magnitude of the kinetic energy to the potential energy of an electron in the 5th excited state of a hydrogen atom is :Physics · Atoms and Nuclei · MCQ
- Q62.The work function of a substance is . The longest wavelength of light that can cause the emission of photoelectrons from this substance is approximately;Physics · Dual Nature of Radiation · MCQ
- Q63.Primary coil of a transformer is connected to ac. Primary and secondary turns of the transforms are 100 and 10 respectively. Secondary coil of transformer is connected to two series resistances shown in figure. The output… Includes diagramPhysics · Alternating Current · MCQ
- Q64.A particle of mass is projected with a velocity '' making an angle of with the horizontal. The magnitude of angular momentum of the projectile about the point of projection when the particle is at its…Physics · Rotational Motion · MCQ
- Q65.The diffraction pattern of a light of wavelength diffracting from a slit of width is focused on the focal plane of a convex lens of focal length . The width of the …Physics · Wave Optics · MCQ
- Q66.A series L.R circuit connected with an ac source has a power factor of . If the source of emf is changed to , the new power factor of the circuit…Physics · Alternating Current · MCQ
- Q67.The electrostatic potential due to an electric dipole at a distance '' varies as :Physics · Electrostatics · MCQ
- Q68.A particle is placed at the point of a frictionless track as shown in figure. It is gently pushed towards right. The speed of the particle when it reaches the point B is : (Take ). Includes diagramPhysics · Work Power and Energy · MCQ
- Q69.Two thermodynamical processes are shown in the figure. The molar heat capacity for process A and B are and . The molar heat capacity at constant pressure and constant volume are… Includes diagramPhysics · Heat and Thermodynamics · MCQ
- Q70.The electric field of an electromagnetic wave in free space is represented as . The corresponding magnetic induction vector will be :Physics · Electromagnetic Waves · MCQ
- Q71.At which temperature the r.m.s. velocity of a hydrogen molecule equal to that of an oxygen molecule at ?Physics · Heat and Thermodynamics · MCQ
- Q72.Match List I with List II. Choose the correct answer from the options given below : Includes tablePhysics · Units and Measurements · MCQ
- Q73.A potential divider circuit is shown in figure. The output voltage V is : Includes diagramPhysics · Current Electricity · MCQ
- Q74.A Zener diode of breakdown voltage is used as a voltage regulator as shown in the figure. The current through the Zener diode is : Includes diagramPhysics · Electronic Devices · MCQ
- Q75.Two insulated circular loop A and B of radius '' carrying a current of '' in the anti clockwise direction as shown in the figure. The magnitude of the magnetic induction at the centre will be : Includes diagramPhysics · Magnetics · MCQ
- Q76.All surfaces shown in figure are assumed to be frictionless and the pulleys and the string are light. The acceleration of the block of mass is : Includes diagramPhysics · Laws of Motion · MCQ
- Q77.An electric toaster has resistance of at room temperature . The toaster is connected to a supply. If the current flowing through it reaches , the…Physics · Current Electricity · MCQ
- Q78.A spherical body of mass is dropped from a height of from the ground. After hitting the ground, the body rebounds to a height of . The impulse of force imparted by the ground to the body is…Physics · Center of Mass · MCQ
- Q79.Young's modules of material of a wire of length '' and cross-sectional area is . If the length of the wire is doubled and cross-sectional area is halved then Young's modules will be :Physics · Properties of Matter · MCQ
- Q80.The gravitational potential at a point above the surface of earth is and the acceleration due to gravity at that point is . Assume that the mean radius of earth…Physics · Gravitation · MCQ
- Q81.The horizontal component of earth's magnetic field at a place is . A very long straight conductor carrying current of in the direction from South east to North West is placed. The…Physics · Magnetic Properties of Matter · Numerical
- Q82.Two cells are connected in opposition as shown. Cell is of emf and internal resistance; the cell is of emf and internal resistance. The terminal potential… Includes diagramPhysics · Current Electricity · Numerical
- Q83.A electron of hydrogen atom on an excited state is having energy . The maximum number of allowed transitions to lower energy level is .Physics · Atoms and Nuclei · Numerical
- Q84.A capacitor of capacitance and potential has energy . It is connected to another capacitor of capacitance and potential . Then the loss of energy is …Physics · Capacitor · Numerical
- Q85.The distance between object and its two times magnified real image as produced by a convex lens is . The focal length of the lens used is cm.Physics · Geometrical Optics · Numerical
- Q86.In a closed organ pipe, the frequency of fundamental note is . A certain amount of water is now poured in the organ pipe so that the fundamental frequency is increased to . If the organ pipe has a…Physics · Waves · Numerical
- Q87.Consider a Disc of mass , radius , rotating with angular velocity of about an axis perpendicular to the plane of rotation. An identical disc is kept gently over the rotating… Includes diagramPhysics · Rotational Motion · Numerical
- Q88.The displacement and the increase in the velocity of a moving particle in the time interval of to are and , respectively. The distance travelled by the particle in …Physics · Motion in A Straight Line · Numerical
- Q89.Each of three blocks and shown in figure has a mass of . Each of the wires and has cross-sectional area and Young's modulus … Includes diagramPhysics · Properties of Matter · Numerical
- Q90.A ceiling fan having 3 blades of length each is rotating with an angular velocity of 1200 . The magnetic field of earth in that region is and angle of dip is . The emf induced…Physics · Electromagnetic Induction · Numerical