Colours of thin soap bubbles are due to (a) refraction (b) dispersion (c) interference (d) diffraction

Answer: (c). Light reflected from the top and bottom surfaces of the thin soap film interferes. Different wavelengths are reinforced at different thicknesses, giving colours. So the answer is (c) interference.

Colours of thin soap bubbles are due to | NEET 1999 (AIPMT)

Q29NEET 1999 · AIPMTEasy

Biprism, Thin Films & Other Devices

Colours of thin soap bubbles are due to

Show answer and solution

Answer: (c)

Light reflected from the top and bottom surfaces of the thin soap film interferes.
Different wavelengths are reinforced at different thicknesses, giving colours.
So the answer is (c) interference.

Report a mistake

More questions on Biprism, Thin Films & Other Devices

In a Fresnel biprism experiment, the two positions of lens give separation between the…NEET 1995 (AIPMT)
In a biprism experiment, using a light of wavelength 4800 Å, a steady interference…MHT CET 2026 (19 May, Shift 1)
The distance of a point on the screen from two slits in biprism experiment is 1.8 × 10⁻⁵…MHT CET 2026 (14 May, Shift 2)
In a biprism experiment, the distance between 4th and 13th bright band on the same side…MHT CET 2026 (20 Apr, Shift 1)
In a biprism experiment, a steady interference pattern is observed on the screen kept at…MHT CET 2026 (19 Apr, Shift 2)
In biprism experiment, the maximum intensity is I₀. If the path difference between the…MHT CET 2026 (19 Apr, Shift 2)
In a biprism experiment, fifth dark fringe is obtained at a point. A thin transparent…MHT CET 2026 (18 Apr, Shift 2)
In biprism experiment, the 4th dark band is formed opposite to one of the slits. The…MHT CET 2026 (11 Apr, Shift 2)

Biprism, Thin Films & Other Devices question from NEET 1999 (AIPMT)

More questions on Biprism, Thin Films & Other Devices