Below are a number of questions. Have a go at answering each of them. At the bottom, you can click on a button to see how many you have right.
Monochromatic light is never coherent Monochromatic light is always coherent Coherent light is never monochromatic Coherent light is sometimes monochromatic Coherent light is always monochromatic
The fringe width increases and the fringes are brighter The fringe width increases but the brightness remains unchanged The fringe width decreases and the fringes are less bright The fringe width decreases and the fringes are brighter The fringe width is unchanged but the fringes are less bright
The fringes are brighter, the fringe width is unchanged and there are more fringes The fringes are brighter, the fringe width is unchanged and there are less fringes The fringes are less bright, the fringe width increases and there are more fringes The fringe brightness is unchanged, the fringe width increases and there are less fringes The fringe brightness is unchanged, the fringe width decreases and there are less fringes
1 × 10 -6 m 2 × 10 -6 m 5 × 10 -6 m 1 × 10 -5 m 2 × 10 -5 m
The fringe width decreases and the fringes are less bright The fringe width decreases and the fringe brightness is unchanged The fringe width increases and the fringes are brighter The fringe width increases and the fringes are less bright The fringe width is unchanged and the fringes are less bright
Click the "Check score" button to see your current score. Keep trying until you have got all of the questions right. You will then be asked if you want to check the reasons.
You have now completed this exercise. Before you quit the package, return to the title page and check that the learning outcomes have been achieved.
Materials Teaching Educational Resources © 1999 MATTER Project, The University of Liverpool
