Prof. Varun [IB Physics SL HL] India

A train is moving in a straight line away from a stationary observer when the train horn emits a sou

The diagram shows a second harmonic standing wave on a string fixed at both ends.What is the phase

The graph shows the variation with diffraction angle of the intensity of light when monochromatic

A photon interacts with a nearby nucleus to produce an electron. What is the name of this process?

A planet has radius R . The escape speed from the surface of the planet is v . At what distance from

For fringes to be observed in a double-slit interference experiment, the slits must emit waves that

In a Young’s double-slit experiment, the distance between fringes is too small to be observed.

An object at the end of a spring oscillates vertically with simple harmonic motion (shm).

A satellite orbiting a planet moves from orbit X to orbit Y.What is the change in the kinetic energy

A detector measures the count rate from a sample of a radioactive nuclide. The graph shows the vari

A train travelling in a straight line emits a sound of constant frequency f . An observer at rest v

A cell of emf 6.0 V and negligible internal resistance is connected to three resistors as shown.

What are the changes in the speed and in the wavelength of monochromatic light when the light pa

Two isolated point masses, P of mass m and Q of mass 2m, are separatedby a distance 3d. X is a point

The gravitational field strength at the surface of a planet of radiusRis .A satellite is moving

May 2023 | Paper 1 | HL | TZ1

A negatively charged particle in a uniform gravitational field ispositioned mid-way between two char

The graph showsthe variation of torque with time acting on a rotatingobject.What isthe

A proton collides with an electron. What are the possible products of the collision?A. Two neutro

Identify the conservation law violated in the proposed reaction.

The radius of the Earth is R. A satellite is launched to a heighth =above the Earth’s surface.

Three capacitors are arranged as shown. What is the total capacitance of the arrangement?

Some energy levels for a hydrogen atom are shown. What is the wavelength emitted in transition

What gives the total change in nuclear mass and the change in nuclear binding energy as a res

A parallel-plate capacitor is connected to a battery. What happens when a sheet of dielectric mat

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Wind generator X has a maximum power output PX for a particular wind speed. For the samewind speed,

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A pure sample of iodine-131 decays into xenon with a half-life of 8 days.What is number of

A space probe movesin a circular orbit around Earth.The kineticenergy of the probe is .The probe w

An object with a moment of inertia of 12 kg m isrotating about its axisof rotation with an angularsp

Photons of discrete energy are emitted during gamma decay. This is evidence forAatomic ene

An object of mass M is accelerated vertically upwards by a motor at a constant acceleration.The

A ball of mass m is thrown with an initial speed of u at an angle θ to the horizontal as shown.

A block moving with initial speed v is brought to rest, after travelling a distance d, by africtiona

A diffraction grating is used to observe light of wavelength 400 nm. The light illuminates 100 slits

A battery is used to charge a capacitor fully through a resistor of resistance R. The energy supplie

A planet has an albedo of 0.30. A simplified energy balance for the planet is shown. What is the int

Element X has a nucleon number 𝐴𝑋A X​ and a nuclear density 𝜌𝑋ρ X​ . Element Y has a nucleon

Radioactive Decay Law | Half Life | HL

Do we have gravity in space? | Examples of Pseudo Force

What are the fundamental SI unitsfor angular impulse?

What is correct about the nature and range of the strong interaction between nuclear particles?A.

The equation constant pV/T = is applied to a real gas where p is the pressure of the gas, V is its v

A ball of mass (50 ± 1)g is moving with a speed of (25 ± 1)ms-1. What is the fractional uncertainty

The escape speed from the surface of earth isv .The radius of earth isR. A satellite of mass m is

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An object undergoing simple harmonic motion (SHM) has a period T and total energy E . The

What can be used to calculate the probability of finding an electron in a particular region of space

A longitudinal wave is travelling through a medium. The variation with distance d of thedisplacement

When monochromatic light is incident on a single slit a diffraction pattern forms on a screen.