Advertisements
Advertisements
Question
What do you understand by the term spectrum?
Advertisements
Solution
The colour band obtained on a screen on passing white light through a prism is called the spectrum.
RELATED QUESTIONS
State the cause of dispersion of white light
A beam of white light falls on a glass prism. The colour of light which undergoes the least bending on passing through the glass prism is:
(a) violet
(b) red
(c) green
(d) blue
The frequency range of visible light is from 3.75 × 1014 Hz to 7.5 × 1014 Hz. Calculate its wavelength range. Take speed of light = 3 × 108 m/s.
The wavelength range of white light is ______.
A wave has wavelength 50Å of name the wave.
Draw a neat and labelled diagram for dispersion of light.
Observe the given figure and write appropriate phenomenon of light in the box.

Say TRUE or FALSE
Rainbow is formed by dispersion of which light by water drops
Why do we see a rainbow in the sky only after rainfall?
dispersive power of crown glass? Given that µv = 1.5230, µr = 1.5145
