Colors seen in soap bubbles and oil slicks are due to

A. The interference of light reflected from the 2 different boundaries
B. The interference of the incident light with the light reflected from the first surface
C. The interference of the incident light with the light reflected from the 2nd surface.
D. The diffraction of light due to the different indices of refraction.


Ans: A. The interference of light reflected from the 2 different boundaries

Physics & Space Science

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Light with an average intensity of 683 W/m2 falls on a black surface and is completely absorbed. What is the radiation pressure that the light exerts on this surface if it strikes perpendicular to the surface?

(c = 3.00 × 108 m/s) A) 1140 nN/m2 B) 2280 nN/m2 C) 4550 nN/m2 D) 205,000 N/m2

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The central star of the Crab Nebula has now collapsed into a(n) ________, whose energy keeps this famous nebula visible even in binoculars

Fill in the blank(s) with correct word

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The wavelengths of radiation from a star that is moving away from us

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