The critical angle in air for a particular type of glass is 39.0°. what is the speed of light in this class glass? (c = 3.00 × 108 m/s

Explanation:

As we know that the critical angle is the maximum angle for a given medium for which light ray will show the phenomenon of refraction into air

After critical angle the light will bend into the same medium and will show total internal refraction.

So here at critical angle the angle of refraction must be 90 degree into air

So here we know

now we know by the speed of light in medium is given as

i feel your pain too because i cant find my dad and hes been missing for 17 years of my life

explanation:

he went to the supermarket with your dad

answer: electrons