Question 20
Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.

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Solution

The order of colours will be VIBGYOR.
V - Violet
I - Indigo
B - Blue
G - Green
Y - Yellow
O - Orange
R - Red

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Question 20
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Prism Experiment

Standard VII Physics

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Question 20 Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.

The order of colours will be VIBGYOR. V - Violet I - Indigo B - Blue G - Green Y - Yellow O - Orange R - Red

Question 20
Draw a ray diagram showing the dispersion through a prism when a narrow beam of white light is incident on one of its refracting surfaces. Also indicate the order of the colours of the spectrum obtained.

The order of colours will be VIBGYOR.
V - Violet
I - Indigo
B - Blue
G - Green
Y - Yellow
O - Orange
R - Red