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The iridescent colours of soap bubbles are caused by interfering of (internally and externally) reflected light waves and are determined by the thickness of the film. This phenomenon is not the same as the origin of rainbow colours (caused by the refraction of internally reflected light), but rather are the same as the phenomenon causing the colours in an oil slick on a wet road.
√3601 × √(224) ÷ √102 = ?
What is the value of "π"
40.02% of 1220.05 = ?2 + 29.09 × 7.99
26.11 × 7.98 + 27.03 × 3.12 – 34.95 + 93.9 × 3.02 =?
456 x 99.999 + 654 = ?
A sum of ₹60,000 is invested at a compound interest rate of 'x%' per annum, compounded annually, and grows to ₹75,264 in 2 ye...
14.742 ÷ 24.98 × 15.76 = ?% of 359.88
1224.04 + 4323.69 = ?% of 3200 + 4747.96
(124.99)² = ?