Related Questions

Which of the following statement(s) is/ are correct for critical angle?
1. Refractive angle is 90°.
2. Light ray goes from rarer to denser medium.
3. Light ray goes from denser to rarer medium.
Assertion (A): Small glass beads fixed on traffic signals glow brightly when light falls upon them.
Reason (R): Light is totally reflected when the angle of incidence exceeds a certain critical value and light travelling in a denser medium is reflected from a rarer medium.
A ray of light travels from a medium of refractive index m1 to a medium of refractive index m2. If “i” and “r” are the angle of incidence and refraction, then what is sin(i)/sin(r)?
A light ray travelling from denser to rarer medium at an angle of incidence more than critical angle of concerned media pair suffers.
For a critical angle of 60 degree and the refractive index of the first medium is 1.732, the refractive index of the second medium is
The refractive index of a parallel glass slab is 1.57. A light, from medium Y, is incident on the glass slab. If the angle of incidence is 37°, then the angle of emergence, when the light emerges back to medium Y, is ____
If the light is incident on an optically denser medium, then what is the relationship between the angle of incidence, I, and the angle of refraction, r?
A crown glass prism with refractive index 6° is to be achromatized for red and blue color light with flint glass prism. What will be the angle of flint glass prism? (µr = 1.513, µr‘ = 1.645, µ2 = 1.523 and µ2‘ = 1.665, Where µr and µ2 are refractive indices of red and blue light respectively whereas, µr‘ and µ2‘ are refractive indices of red and blue light respectively for flint glass.)
According to the Snell's law if an electromagnetic wave is incident in a medium (refractive index n1) on another medium (refractive index n2);
From the given below statements, find the incorrect statement. i. A critical path has zero float. ii. A critical path has both critical and non-critical activities. iii. A critical path is the longest path and consumes maximum time and resources.