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Activity 10.2 — Dispersion of Light through a Prism
NCERT Activity 10.2: Pass white light through a glass prism and watch it split into seven colours — VIBGYOR. Newton's prism experiment!
How To Perform
1
Shine White Light
Direct a beam of white light towards a glass prism.
2
Watch Light Split
Observe the white light split into VIBGYOR spectrum.
3
Observe Bending Angles
See how violet bends most and red bends least.
4
Recombine with Second Prism
Use an inverted prism to recombine the spectrum into white light.
5
Classify the Response
Explain why white light splits into seven colours.
⚠️ Safety Notes
- •Do not look directly at the sun or bright light sources through a prism.
- •Use a narrow slit to create a thin beam of light for better dispersion observation.
- •Handle glass prisms carefully to avoid breakage.