Entering a denser medium: speed and wavelength drop, frequency stays the sameसघन माध्यम में प्रवेश: चाल और तरंगदैर्घ्य घटते हैं, आवृत्ति वही रहती हैEntering a denser medium: speed and wavelength drop, frequency stays the same
NCERT Eq 10.7 · Class 12 Physics · Chapter 10 · interactive diagram
Read Chapter 10 with this diagramइस डायग्राम के साथ अध्याय 10 पढ़ेंIs diagram ke saath Ch 10 padhiyeAll Physics diagramsसभी भौतिकी डायग्रामSaare Physics diagrams
Parts and what they mean
- Wavefronts in medium 1 (one λ₁ apart) (माध्यम 1 में तरंगाग्र (λ₁ दूरी पर)) — Successive crests, spaced λ₁ = v₁/ν.
- Wavefronts in medium 2 (one λ₂ apart) (माध्यम 2 में तरंगाग्र (λ₂ दूरी पर)) — λ₂/λ₁ = v₂/v₁: the same crests meet at the boundary, so as many crests leave per second as arrive — frequency unchanged. Spacing drawn to scale for n = 1.5.
- Ray (किरण) — Perpendicular to the wavefronts; bends towards the normal.
- Denser medium (n = 1.5) (सघन माध्यम (n = 1.5)) — Light is slower here: v₂ = c/n.
Original diagram drawn by Simple Learning Hub, based on NCERT Eq 10.7. Report a mistake