Refraction from denser to rarer medium Steps:

• Light travels from glass (higher refractive index) to air (lower refractive index).
• Apply Snell's law: n_glass sin θ_i = n_air sin θ_r, where n_glass > n_air.
• Thus, θ_r > θ_i, so the ray bends away from the normal.
• Select the arrow showing deviation away from the normal in air.

Why D is correct:

• Snell's law dictates bending away from the normal when entering a rarer medium, as shown in D.

Why the others are wrong:

• A: Bends toward normal, incorrect for rarer medium.
• B: No bending, ignores refraction.
• C: Bends back, depicts reflection instead.

Final answer: D