| Date | November 2012 | Marks available | 1 | Reference code | 12N.1.HL.TZ0.14 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 0 |
| Command term | Question number | 14 | Adapted from | N/A |
Question
Progressive (travelling) waves S and T have the same frequency and are in the same medium. S has amplitude 2.0 m and T has amplitude 4.0 m. What is the ratio of the intensity of T to the intensity of S?
A. \(\frac{1}{4}\)
B. \(\frac{1}{2}\)
C. 2
D. 4
Markscheme
D
Examiners report
Not enough candidates recognized that intensity depends upon the square of the amplitude. Option C was nearly as popular as the key D.
Syllabus sections
Show 67 related questions
- 17N.1.SL.TZ0.14: Two wave pulses, each of amplitude A, approach each other. They then superpose...
- 17M.2.SL.TZ1.2a: Outline what is meant by the principle of superposition of waves.
- 17M.1.HL.TZ1.13: Properties of waves are I. polarizationII. diffractionIII. refraction Which of these...
- 17M.1.SL.TZ2.16: A beam of unpolarized light is incident on the first of two parallel polarizers. The...
- 17M.1.SL.TZ1.16: Unpolarized light of intensity I0 is incident on the first of two polarizing sheets....
- 17M.1.SL.TZ1.15: Two pulses are travelling towards each other. What is a possible pulse shape when the...
- 16N.2.SL.TZ0.5b: Radio waves are emitted by a straight conducting rod antenna (aerial). The plane of...
- 16M.2.HL.TZ0.10a: Explain why the intensity of light at θ=0 is 16I0.
- 16N.1.HL.TZ0.14: A point source of light of amplitude A0 gives rise to a particular light intensity when...
- 16M.1.SL.TZ0.15: Horizontally...
- 16M.1.SL.TZ0.14: A water wave moves on the...
- 16M.1.SL.TZ0.13: A point source emits sound waves of amplitude A. The sound intensity at a distance d from the...
- 15M.1.SL.TZ1.14: Which graph shows the variation with amplitude A of the intensity I for a wave?
- 15M.1.HL.TZ1.12: Wave generators placed at position P and position Q produce water waves of wavelength 4.0 cm....
- 15M.1.HL.TZ1.16: An unpolarized ray of light in air is incident on the surface of water. The reflected ray is...
- 15M.1.HL.TZ1.17: Two polarizers have polarizing axes that make an angle of 30˚ to each other. Unpolarized...
- 15M.1.SL.TZ1.15: Wave generators placed at position P and position Q produce water waves of wavelength 4.0 cm....
- 15M.1.SL.TZ2.15: Two wave pulses move towards each other as shown in the diagram. Which diagram shows a...
- 15M.2.HL.TZ2.4d: Microwaves can be used to demonstrate polarization effects. Outline why an ultrasound...
- 15M.2.HL.TZ2.4a: Outline why a minimum in the intensity occurs for certain positions of sheet B.
- 15M.3.SL.TZ1.4a: Outline the function of an analyser in this context.
- 15M.3.SL.TZ1.4b: Polarized light of intensity I0 is incident on the analyser. (i) The transmission axis of...
- 15M.3.SL.TZ2.4a: State what is meant by polarized light.
- 14M.1.HL.TZ1.20: Unpolarized light of intensity \({I_0}\) is incident on a polarizer that has a vertical...
- 14M.1.HL.TZ2.19: A person wearing polarizing sunglasses stands at the edge of a pond in bright...
- 14M.2.HL.TZ1.4c: (i) Outline the difference between a polarized wave and an unpolarized wave. (ii) State why...
- 15N.1.HL.TZ0.15: Electromagnetic waves pass through a slit in a metal plate with minimal diffraction. The slit...
- 15N.1.SL.TZ0.16: Electromagnetic waves A. always obey an inverse square law. B. are made up of...
- 15N.1.SL.TZ0.17: A wave pulse travels along a light string which is attached to a frictionless ring. The ring...
- 15N.3.SL.TZ0.3a: Sketch, for the diffraction pattern produced, a graph showing the variation of the relative...
- 14N.2.HL.TZ0.7f.i: Describe the polarization of the sunlight that is reflected from the sea.
- 14N.2.HL.TZ0.7f.iii: Outline how polarized sunglasses help to reduce glare from the sea.
- 14N.3.SL.TZ0.4a: Distinguish between polarized light and unpolarized light.
- 14M.3.SL.TZ2.3d: Emlyn puts on a pair of polarizing sunglasses. Explain how these sunglasses reduce the...
- 11N.1.SL.TZO.29: The power emitted as electromagnetic radiation by the Sun is approximately 4×1026 W. The...
- 11N.1.HL.TZ0.19: Polarized light of intensity I0 is incident on a polarizing filter. The angle between the...
- 12N.1.SL.TZ0.17: Waves emitted from sources X and Y have equal wavelengths and are initially in phase. The...
- 12N.1.SL.TZ0.27: The intensity of radiation from a star at the surface of one of its planets is I. The...
- 12N.1.HL.TZ0.18: Unpolarized light is incident on the surface of a transparent medium. The reflected light is...
- 13N.1.HL.TZ0.16: Two polarizing filters are set up so the transmitted light is at a maximum...
- 13M.1.HL.TZ1.12: A point source of sound is placed behind a soundproof barrier as shown in the...
- 13M.2.SL.TZ1.3b: The diagram shows two point sources of sound, X and Y. Each source emits waves of wavelength...
- 13M.2.SL.TZ1.3a: State what is meant by the principle of superposition of waves.
- 12M.1.SL.TZ2.15: Two wave pulses travel along a string towards each other. The diagram shows their positions...
- 12M.1.HL.TZ1.15: A beam of unpolarized light is incident on the surface of a liquid and is partially reflected...
- 12M.1.HL.TZ2.20: Unpolarized light is incident on a polarizer. The light transmitted by the first polarizer is...
- 13M.1.HL.TZ2.18: Unpolarized light of intensity I0 is incident on a polarizer with a vertical transmission...
- 11M.2.HL.TZ2.13d: The string in (c) is fixed at both ends...
- 12M.2.HL.TZ1.5a: On the axes below, sketch a graph to show how the intensity I of the light emerging from the...
- 12M.2.SL.TZ1.6e: A long spring is stretched so that it has a length of 10.0 m. Both ends are made to oscillate...
- 12M.3.SL.TZ2.4a: State what is meant by polarized light.
- 12M.3.SL.TZ2.4b: Light of intensity I0 is incident on a polarizer. The transmission axis of the polarizer is...
- 11N.3.SL.TZ0.3c: The light from a point source is unpolarized. The light can be polarized by passing it...
- 12N.2.SL.TZ0.6a: State what is meant by the terms ray and wavefront and state the relationship between them.
- 12N.3.SL.TZ0.3a: Describe what is meant by polarized light.
- 11M.1.HL.TZ1.16: Plane-polarized light is incident normally on a polarizer which is able to rotate in the...
- 13N.3.SL.TZ0.3c: The light from the car headlights in (b) is not polarized. State what is meant by polarized...
- 13N.3.SL.TZ0.16a: State the principle of superposition.
- 11M.2.HL.TZ1.3a: State what is meant by polarized light.
- 11M.2.HL.TZ1.3c: Unpolarized light from a source is split, so that there is a path difference of half...
- 11M.2.HL.TZ1.3b: Unpolarized light is incident on the surface of a plastic. The angle of incidence is θ . The...
- 09M.1.HL.TZ1.19: Unpolarized light is shone through two identical polarizers whose axes are parallel. The...
- 10M.1.HL.TZ1.22: An optically active substance is a substance that A. has a refractive index that depends...
- 10N.1.HL.TZ0.17: Horizontally polarized light is transmitted through a polarizer whose transmission axis is...
- 10N.2.HL.TZ0.B2Part2.a: Explain how these maxima and minima are formed.
- 10N.2.HL.TZ0.B2Part2.c: Describe and explain how it could be demonstrated that the microwaves are polarized.
- 10N.2.HL.TZ0.B2Part2.b: (i) wavelength of the microwaves. (ii) frequency of the microwaves.
