2018 HL paper videos
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May Time Zone 1
Q1: Fractional uncertainity in volume of sphere
Video - 00:1:25 mins
Q2: Find Initial velocity in free fall motion
Video - 00:2:00 mins
Q3: Free body diagram of Ladder in equilibrium
Video - 00:2:25 mins
Q4: Ratio of Kinetic and Gravitational potential energy
Video - 00:2:48 mins
Q5: A child throwing ball to another
Video - 00:3:19 mins
Q6: Calculate Drag Force exerted on parachutist
Video - 00:1:29 mins
Q7: Rate of change of momentum problem
Video - 00:1:55 mins
Q8: Specific heat capacity and Latent heat of vapourization
Video - 00:2:03 mins
Q9: Find an expression of force exerted by ideal gas on wall
Video - 00:2:09 mins
Q10: Pressure-temperature graph
Video - 00:2:28 mins
Q11: Find speed of standing wave produced by wave generator
Video - 00:2:15 mins
Q12: superposition and phase difference between two waves
Video - 00:3:56 mins
Q13: Refraction of light in glass cylinder and then Total internal reflection
Video - 00:7:06 mins
Q14: Restoring force and displacement of SHM
Video - 00:3:07 mins
Q15: Electric field strength as a potential gradient
Video - 00:3:14 mins
Q16: Find Equivalent resistance
Video - 00:2:02 mins
Q17: Find Power dissipated when resistance is quadrupled in a circuit
Video - 00:1:40 mins
Q18: Make Equation of tension at bottom of vertical circle
Video - 00:2:04 mins
Q20: Calculate Binding energy of oxygen
Video - 00:1:20 mins
Q23: Function of nuclear power reactor
Video - 00:1:41 mins
Q24: Intensity-wavelength graph of radiated light from planet
Video - 00:3:33 mins
Q25: Find Albedo from Energy-balance diagram
Video - 00:2:09 mins
Q26: Time period of Simple pendulum on Earth and Moon
Video - 00:2:24 mins
Q28: Effect of doubling number of slits in Multiple slit experiment
Video - 00:3:38 mins
Q29: Variation in frequency & wavelength of light spectrum
Video - 00:3:21 mins
Q30: Find equivalent Electric potential due to four charges
Video - 00:3:57 mins
Q31: Equipotential surface, gravitational potential & energy
Video - 00:3:32 mins
Q32: Derive velocity using Coulomb's force between electron and nucleus
Video - 00:1:45 mins
Q33: How the field & emf in induced by one coil by other attched with battery
Video - 00:4:54 mins
Q37: Taking ratio of undecayed nuclides of two samples after some time
Video - 00:2:14 mins
Q38: Which emission spectrum represents transition between energy levels
Video - 00:4:40 mins
May Time Zone 2
Q1: Diameter of helium nucleus according to Rutherford equation
Video - 00:1:35 mins
Q2: Calculate percentage efficiency of motor
Video - 00:2:41 mins
Q3: Free body diagram of block accelerating on rough horizontal surface
Video - 00:1:44 mins
Q4: Find velocity at certain time from F-t graph
Video - 00:2:08 mins
Q5: Momentum of ball at highest point of projectile motion
Video - 00:2:24 mins
Q6: Find Acceleration in contsantly accelerated motion
Video - 00:3:21 mins
Q7: Find Magnitude of force exerted on Ball by wall
Video - 00:2:26 mins
Q8: Power and Temperature-time graph
Video - 00:1:51 mins
Q10: Find distance between source and detector if time lag of two waves are given
Video - 00:2:38 mins
Q11: Variation of velocity and acceleration of SHM from graph
Video - 00:3:17 mins
Q12: Effect on speed & wavelength when wave enetrs from one medium to other
Video - 00:3:09 mins
Q13: Find expression of nth harmonic of standing waves
Video - 00:2:38 mins
Q14: Reading of Voltmeter across variable resistor when resistance is changed
Video - 00:3:23 mins
Q15: Trajectory of electron in electric field
Video - 00:2:32 mins
Q16: Find current in a circuit by using Ohm's law
Video - 00:1:39 mins
Q17: Power in a unifrom circular motion
Video - 00:2:19 mins
Q18: Calculating total activity of counter & background counts
Video - 00:2:32 mins
Q19: Multiple emission of radioactive particles
Video - 00:2:50 mins
Q23: Role of moderator
Video - 00:2:01 mins
Q24: Resultant force at equilibrium in simple pendulum
Video - 00:2:41 mins
Q25: Angle of first minimum & width of single slit
Video - 00:2:57 mins
Q26: Make an equation of wavelength from multiple slit experiment
Video - 00:2:55 mins
Q27: calculate value of compressed wavelength when source approaches observer
Video - 00:3:48 mins
Q29: Work done on charge & Equipotential surface
Video - 00:2:40 mins
Q30: Identify correct pattern of electric field
Video - 00:1:42 mins
Q31: Energies of two satellites in different orbits
Video - 00:3:42 mins
Q32: Ratio of escape speeds at surfaces of Moon and Earth
Video - 00:1:50 mins
Q34: EMF-time graph when rectangular coil is passed through magnetic field
Video - 00:3:37 mins
Q37: Photoelectric equation & Work-energy principle
Video - 00:3:41 mins
Q38: Wave nature of electron experiment
Video - 00:2:47 mins
Q40: Finding fraction of No.of nuclides in terms of fration of time
Video - 00:2:58 mins
November Time Zone 0
Q1: Calculate percentage uncertainity in density of cube
Video - 00:2:16 mins
Q2: Finding Stopping distance (SUVAT)
Video - 00:1:34 mins
Q3: Velocity vs Displacement Graph for contantly accelerated motion
Video - 00:1:48 mins
Q4: Effect of Air Resistance on velocity of Projectile
Video - 00:3:43 mins
Q5: Kinetic Energy of object at top of vertical circle
Video - 00:2:24 mins
Q6: Conservation of energy for Horizontal mass spring system
Video - 00:2:33 mins
Q7: Sum of three forces (Newton's first law)
Video - 00:3:31 mins
Q8: Temperature-time graph for phase change
Video - 00:1:59 mins
Q9: Ratio of Average kinetic energy of two gases
Video - 00:3:06 mins
Q10: Find ratio of temperatures of two gases
Video - 00:2:30 mins
Q11: Frequency of particle in Uniform Circular motion
Video - 00:2:13 mins
Q12: Nature of vibration of particles in longitudnal wave
Video - 00:2:53 mins
Q15: Checking condition of total internal reflection
Video - 00:3:15 mins
Q16: Calculate Power dissipated when resistance is twiced
Video - 00:2:17 mins
Q17: Make an expression of current in a circuit by solving combination of resistances
Video - 00:3:47 mins
Q18: Find direction of resultant magnetic field due to two current wires
Video - 00:4:25 mins
Q19: Magnetic force behaving as a centripetal force
Video - 00:3:00 mins
Q20: Postulates of Rutherford scattering exp
Video - 00:2:42 mins
Q21: No.of neutrones vs No.of protones graph
Video - 00:3:05 mins
Q23: Role of control rods
Video - 00:2:10 mins
Q24: Find Area of panel using Luminosity equation
Video - 00:2:49 mins
Q25: Find Intensity of reflected light using Albedo
Video - 00:2:24 mins
Q26: Calculate Time period and Energy of simple pendulum (for HL)
Video - 00:2:33 mins
Q29: Calculate apparent frequency
Video - 00:2:33 mins
Q30: Gradient of Potential - distance graph
Video - 00:3:59 mins
Q31: Gravitational potential & work done
Video - 00:2:17 mins
Q32: Comparison of escape speeds of two planets
Video - 00:3:22 mins
Q33: Find induced emf when a coil is rotated by 180 degrees
Video - 00:4:11 mins
Q37: Wavelength & Energy of incident photon (Photoelectric effect)
Video - 00:3:50 mins
Q39: Use ln(activity) vs time graph to find decay constant
Video - 00:4:23 mins
Q40: Activity & half-life
Video - 00:1:32 mins
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