Who among the following inaugurated the 38th National Games held in Dehradun in January 2025?
-
A.
Pushkar Singh Dhami
-
B.
Narendra Modi
-
C.
Anurag Thakur
-
D.
Droupadi Murmu
Correct Answer:
B. Narendra Modi
Explanation:
The absolute refractive index of a medium is defined as the ratio of the speed of light in a vacuum to its speed within that specific medium. Mathematically, this is expressed as n = c/v, where c is the speed of light in a vacuum and v is its speed in the medium. If the refractive index is less than 1, it indicates that the denominator (v) is greater than the numerator (c). Therefore, a refractive index below 1 implies that light travels faster in that medium than it does in a vacuum. While this occurs in certain conditions involving phase velocity, such as in plasmas or with X-rays, it does not violate the laws of physics as no information is transmitted faster than the speed of light.
Click below to open Discussion & Feedback
0 Issues
Please
login to comment or Report Issues.