Question
A soap bubble shows colours when illuminated with white
light. This is due to –Solution
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.
2824Â Â Â Â 2314Â Â Â Â Â 1973Â Â Â Â 1759Â Â Â Â 1634Â Â Â Â 1574
16, 48, 124, 240, 360, 360
1001, 934, 863, 790, 711, 630, 539
Find the wrong number in the given number series.
3, 8, 15, 24, 35, 50, 63Find the wrong number in the given number series.
22, 28, 30, 45, 73, 128
24, 72, 36, 112, 54, 162
6, 24, 125, 720, 5040, 40320
2592 1300 656 331 169.5 88.75
...Find the wrong number in the given number series.
77, 101, 139, 197, 281, 413
Find the wrong number in the given number series,
29, 56, 120, 245, 501, 804Â
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