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A new star is discovered to be approximately 1 light year from Earth. When measured on Earth it has intensity of 1.34x10^-1 Wb/m.  a) How long does the light ray take to reach us from this...

Q monochromatic light is refracted from air into a medium of refractive index n. The ratio of the wavelengths of the incident and refracted waves is...

1.  when light falls on a surface which irregular compared to its wavelength   a.  the reflection is diffuse b.  glare is produced c.  the wavelength is refracted d...

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