Understanding the Principle of Homogeneity

A group of students uses pressurized air to move a piston that forces a nail into a block ofwood. A

The equation PV = NkBT describes the behaviour of an ideal gas.A student tests a fixed mass of gas t

A student determines the resistivity r of a metal that is in the form of a cylindrical wire.The stud

A group of students wants to determine the horizontal component BH of the Earth’smagnetic field.

A group of students is investigating refraction in a semi-circular glass block.Light from a ray box

A student is analysing a sample of water. To determine its density, the student measures the

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Propagation of Errors | Absolute, Relative, Percentage Errors

Instrumental Errors and Least Count

Systematic Errors, Random Errors | Precision and Accuracy

Understanding Significant Figures in Measurements

Measurements, Coherent system of units, SI Units

A star has a parallax angle of 1 × 10-2arc-second at the orbit of the Earth. What is the distance

In a simple model of a nuclear reactor, four neutrons are emitted per fission on average.The average

A suitable material for use as a moderator in a nuclear reactor is...

A nucleus of nuclide X decays. Which series of emissions will produce an isotope of X?

Three products of radioactive decay are:I. alpha particlesII. beta particlesIII. gamma photons. Whic

In a Compton scattering experiment a photon of wavelength l0 and frequency f 0 interacts wit

A photoelectron is emitted when a photon of energy E is incident on a metal surface.The work functio

What is the variation with nucleon number of the density of nuclei?

An ion X contains the following particles:• 53 protons• 89 neutrons• 54 electrons. What is the

A coil of wire rotates at a constant angular speed w in a uniform magnetic field. The variation with

Who was the first scientist to show that electric charge is quantized?

Negative charge carriers travel counter-clockwise in a circular coil that lies in the plane of the

Charge is moving in a wire that is at right angles to a uniform magnetic field.The length of the wir

Two parallel conducting plates are separated by 5.0cm. The variation of electric potential with

The unit of m 0 × e 0 expressed in fundamental SI units is...

Which graph shows the variation of gravitational potential V with distance d from the surface ofthe

A planet P has a diameter one-third that of the Earth. The mass of Earth is 18 times that of P. The

Light of wavelength 5.8 × 10-7m is normally incident on a diffraction grating thathas 400000 lines

A pipe of length L is closed at one end. What is the wavelength of the fifth-harmonic standing wave

Light of wavelength l is incident on two parallel slits of width b that are separated by distance d.

Light passes through two parallel layers as shown.The refractive indices for light travelling betwee

An object performs simple harmonic motion with frequency f . The distance between the extreme positi

A wave is travelling through a medium. The variation with time t of the displacement d of a

A mass–spring system oscillates with time period T1 .Another identical spring is connected in parall

A cube of side 1.0cm has a resistance between opposite sides of 50W.The material is reshaped

A continuous belt of width 0.60m travels at a constant speed of 2.5ms-1. The belt has a uniformdistr

Three combinations of resistors are shown. The resistors are identical. What is the total resistanc

Which pressure–volume (P–V) diagram represents a Carnot cycle?

An ideal gas is held in a cylinder by a piston. The piston compresses the gas rapidly. The average

What is a primary cause of the enhanced greenhouse effect?A. Melting of ice at Earth’s polesB. Incre

A block of ice of mass M is at its melting point.A smaller mass m of water at a temperature of T°C i

Observer X sees a spacecraft moving in the positive x-direction at a speed of 0.50c.Observer Y sees

Two small spheres each of mass 10kg are 8.0m apart and connected by a rod of negligible mass.

A system of moment of inertia I rotates from rest about a given axis. The angular acceleration a

An object of mass 5.0kg is initially at rest. An impulse of 2.0Ns acts on the object. What is the fi

A satellite undergoes one circular orbit of the Earth every 24 hours.What is the angular velocity

A sphere of density r and radius R rests on the bottom of a tank of water. The buoyancy force onthe

A force acts on a cube of mass m that accelerates upwards along a vertical frictionless surface.

The variation with time t of the acceleration a of an object is shown. At t = 0 the object is at res

Instantaneous velocity is defined as...

An alternating current (ac) generator rotates 300 times in 60s. The dashed line shows how the

A circular coil of wire is in a region of uniform magnetic field directed out of the page, refer to

The escape speed from planet X is vesc. Planet Y has twice the density and half the radius ofplanet

The graph shows the variation of the gravitational potential V with distance r from the centre of a

The diagram shows gravitational equipotential surfaces around two identical masses. The greatest

X shows the position of a spectral line in the emission spectrum of helium from a stationary source

Monochromatic light of wavelength l is incident normally on a diffraction grating of slit spacing 92