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F 2x

USAHA/KERJA (W). Perhatikan betul-betul gambar berikut!!!. F 2 > F 1. F 1. F 2. β. α. F 2x. F 1x. s. (F 2x – F 1x ) . S. W =. F 1 cos α. F 1x =. F 2 cos β. F 2x =. RADIASI KALOR. Benda Hitam. Perhatikan betul-betul gambar berikut!!!. Pendekatan !!!.

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F 2x

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  1. USAHA/KERJA (W) Perhatikan betul-betul gambar berikut!!! F2 > F1 F1 F2 β α F2x F1x s (F2x – F1x) . S W = F1 cos α F1x = F2 cos β F2x =

  2. RADIASI KALOR Benda Hitam Perhatikan betul-betul gambar berikut!!! Pendekatan !!! Bila sebuah kaleng diberi lubang, maka lubang tampak gelap karena cahaya yang masuk ke dalam lubang terperangkap, tidak bisa keluar dan energinya habis sewaktu cahaya tersebut terpantul-pantul dalam kaleng.

  3. v v Cahaya sebagai apa ?? Efek fotolistrik Efek Fotolistrik Adalah: Peristiwa terlepasnya elektron dari permukaan logam karena penyinaran Sinar berfrekuensi tinggi (ultraviolet) Perhatikan betul-betul gambar berikut!!! hampa E = h.f ( - ) ( + ) A K V A E p R

  4. Efek Compton θ α E = Energi(J) Foton terhambur pf’y pf’ v = kecepatan(m/s) momentum (kg.m/s) P = E= hf’ Elektron diam Foton datang pe’x pf’x h.f E = m.c2 E = h.f m.c2 v = nol = pe = nol h.f m.c = c Eo = moc2 h.f p = c h.f pf = c Elektron terhambur pe’= mv pe’y E= m.c2

  5. θ α E = Energi(J) pf’y v = kecepatan(m/s) Foton terhambur pf’ momentum (kg.m/s) P = E= hf’ pf’x Foton datang pe’x h.f E = m.c2 E = Elektron terhambur h.f m.c2 Elektron diam = v = nol h.f m.c Eo = moc2 = c pe = nol pe’= mv h.f pe’y p = E= m.c2 c h.f pf = c

  6. θ α Perhatikan betul-betul gambar berikut!!! Efek Compton E = Energi(J) pf’y v = kecepatan(m/s) Foton terhambur pf’ momentum (kg.m/s) P = E= hf’ pf’x Foton datang pe’x h.f E = m.c2 E = Elektron terhambur h.f m.c2 Elektron diam = v = nol h.f m.c Eo = moc2 = c pe = nol pe’= mv h.f pe’y p = E= m.c2 c h.f pf = c

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