CBSE Class 7 Answered
what happens in a prism by which we can see the dispersion of light?
Asked by Shashank | 19 Dec, 2015, 09:57: PM
Expert Answer
The phenomenon of splitting (breaking-up) of white light into its constituent seven colours on passing through a glass prism is called dispersion of light.
Different colours undergo different deviations on passing through prism.
The sequence of colours given by the prism is Violet (V), Indigo (I), Blue (B), Green (G), Yellow (Y), Orange (O) and Red (R). VIBGYOR is the acronym for this sequence.
The band of coloured components of light beam is called its spectrum. The red light bends the least and violet light bends the most. If a second identical prism is placed in an inverted position with respect to the first prism, all the seven colours recombine to form white light.
Answered by Faiza Lambe | 20 Dec, 2015, 12:56: PM
Concept Videos
-
Light, Mirrors and Images
Dispersion of light through a prism. Study of spectrum.
CBSE 7 - Science
Asked by apramanik | 22 Jul, 2019, 09:18: PM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by Nimmi | 25 Jan, 2019, 06:40: PM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by Topperlearning User | 29 Jan, 2014, 10:51: AM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by Topperlearning User | 26 Nov, 2013, 02:40: AM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by Topperlearning User | 12 Mar, 2015, 11:59: AM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by Topperlearning User | 29 Jan, 2014, 10:53: AM
ANSWERED BY EXPERTCBSE 7 - Science
Asked by Topperlearning User | 29 Jan, 2014, 10:53: AM
ANSWERED BY EXPERT
