- 搜标题
- 搜题干
- 搜选项
单项选择题
A colorful band or spectrum can be shown on the screen when we use white light in a grating experiment. By adjusting which of the following parameters, we can obtain a wider band?
A．The distance between the light source and grating.
B．The width of each slit.
C．The grating constant.
D．The total number of slits.
B．The width of each slit.
C．The grating constant.
D．The total number of slits.
