A light ray travels inside a large glass block and approached the glass-air interface at some angle relative to the normal (perpendicular to the surface). After entering the air, the light ray's
Answer
wavelength becomes larger, and it bends towards the normal.
wavelength becomes larger, and it bends away from the normal.
wavelength becomes smaller, and it bends towards the normal.
wavelength becomes smaller, and it bends away from the normal.