The velocities of light in two different mediums are `2xx10^(8) ms^( -1)` and `2.5xx10^(8) ms^(-1)` respectively. The critical angle for there mediums is

The velocities of light in two different media are 2xx10^(8) m/s and 2.5xx10^(8) m/s respectively. The critical angle for these media is

The velocities of light in two different media are 2* 10^8 m/s and 2.5 * 10^8 m/s respectively.The critical angle for these media is sin^(-1)((1)/(5)) sin^(-1)((4)/(5))

The velocities of light in two different media are 2* 10^8 m/s and 2.5 * 10^8 m/s respectively.The critical angle for these media is

Light ray is travelling from a denser medium into a rarer medium. The velocity of light in the denser and rarer medium is 2 xx 10^(8) m/sec and 2.5 xx 10^(8) m / sec. The critical angle of the two media is

Light travels in two media A and B with speeds 1.8xx10^(8)ms^(-1) and 2.4xx10^(8)ms^(-1) respectively. Then tha angle between them is