The refractive index of water is `4//3` and that of glas is `5//3`. What will be the critical angle for the ray of light entering water form the glass
The refractive index of water is `4//3` and that of glas is `5//3`. What will be the critical angle for the ray of light entering water form the glass?
A. `sin^(-1)(4/5)`
B. `sin^(-1)(5/4)`
C. `sin^(-1)(1/2)`
D. `sin^(-1)(2/1)`
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(a) `mu=(mu_(1))/(mu_(2))=(5//3)/(4//3)=5/4`
`sinC=1/(mu)=4/5impliesC=sin^(-1)(4/5)`
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