Physics
What is refractive index ?
It is defined as the ratio of speed of light in the medium to the speed of light in vacuum.
It is defined as the product of speed of light in medium and in vacuum.
It is defined as the ratio of speed of light in vacuum to the speed of light in the medium.
None of above
It is defined as the ratio of speed of light in vacuum to the speed of light in the medium.
The ratio of the velocity of light in a vacuum to its velocity in a specified medium.
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B. Mie scattering
C. Back scattering
D. None of the above
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B. Convex lens
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Which elements are malleable and good conductors of electricity?
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C. Diffracted
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Mach number is used in connection with the speed of
A. sound
B. aircraft
C. spacecraft
D. ships
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