Total internal reflection can take place when light travels from

1. Total internal reflection (TIR) is an optical phenomenon that occurs when a ray of light strikes the boundary between two transparent media from the denser medium (higher refractive index) to the rarer medium (lower refractive index) at an angle of incidence greater than the critical angle. 2. For TIR to occur, two conditions must be met: a. Light must travel from a denser medium to a rarer medium. b. The angle of incidence in the denser medium must be greater than the critical angle. 3. Let's compare the refractive indices (n): n(diamond) > n(glass) > n(water) > n(air). 4. Option (A) Diamond to Glass: Light travels from denser (diamond) to rarer (glass). TIR is possible. 5. Option (B) Water to Glass: Light travels from rarer (water) to denser (glass). TIR is not possible. 6. Option (C) Air to Water: Light travels from rarer (air) to denser (water). TIR is not possible. 7. Option (D) Air to Glass: Light travels from rarer (air) to denser (glass). TIR is not possible. 8. Therefore, TIR can take place when light travels from diamond to glass.