An object O is placed close to a thin converging lens.
The diagram represents three rays from the top of O passing through the lens.
Which type of image is produced by the lens when the object O is in this position?
The diagram shows the electromagnetic spectrum, in order of increasing wavelength.
Three types of radiation, P, Q and R, are missing from the spectrum diagram.
Which types of electromagnetic radiation are represented by P, by Q and by R?
Radiation from the Sun is dispersed by a prism. The prism does not absorb any of the radiation.
Four identical thermometers are placed, one at each of the labelled positions.
In which position does the thermometer show the greatest rise in temperature?
An object is placed in front of a thin converging lens.
The diagram shows the paths of two rays from the top of the object.
An image of the object is formed on a screen to the right of the lens.
How does this image compare with the object?
A scientist tries to direct a ray of light in a glass block so that no light escapes from the top of the block. However, some
light does escape. The scientist changes angle X and stops the light escaping from the top.
Which row in the table describes the change to angle X and the name of the effect produced?
A student draws a diagram representing three rays of light from point P passing through a converging lens. Each point labelled F is a principal focus of the lens.
Which of the rays has the student drawn correctly?
The diagram shows a ray of light travelling in a substance P. The ray reaches a boundary with a substance Q. Total internal reflection occurs at the boundary.
Which row contains correct statements about angle X and about the optical density of substance Q?
The diagram shows radiation from a lamp passing through a prism.
Which type of radiation is found at P? he diagram shows radiation from a lamp passing through a prism.
A thin converging lens is used to produce, on a screen, a focused image of a candle.
Various focused images are produced on the screen by moving the lens and the screen backwards and forwards.
Which statement is always correct?