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OPTIS FISIS

OPTIS FISIS. CAHAYA. - sinar yang dapat di uraikan (polikromatik) - sinar yang tak dapat di uraikan (monokromatik) - dalam ruang hampa A) cepat rambat sama besar B) frekuansi masing warna beda C) pj. Gelomb masing berbeda. Dispersi (peruraian warna). - merah (λ dan v terbesar) - jingga

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OPTIS FISIS

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  1. OPTIS FISIS SMA N 1 PONTIANAK ( ST )

  2. CAHAYA • - sinar yang dapat di uraikan (polikromatik) • - sinar yang tak dapat di uraikan (monokromatik) • - dalam ruang hampa • A) cepat rambat sama besar • B) frekuansi masing warna beda • C) pj. Gelomb masing berbeda SMA N 1 PONTIANAK ( ST )

  3. Dispersi (peruraian warna) • - merah (λ dan v terbesar) • - jingga • - kuning • - hijau • - biru • - nila • ungu SMA N 1 PONTIANAK ( ST )

  4. Benda bening  r = /rm - /rn • Plan pararel  t = /tm – tu/ • Prisma  cp = δu - δm • Lensa • s’ = /s’ – s’u/ • f = /fm – fu/ SMA N 1 PONTIANAK ( ST )

  5. MENJADIKAN DISPERSI • prisma akromatik  (n’u – n’m)β’ = (nu – nm)β • lensa akromatik  SMA N 1 PONTIANAK ( ST )

  6. Prisma Pandang Lurus Dengan rumus = (n’h-1)β’=(nh-1)β Interferensi Cermin frensel Max  Min  SMA N 1 PONTIANAK ( ST )

  7. Percobaan Young • Max  • Min  • Cincin Newton • Max  rk2 = ½ R (2k-1) λ • Min  rk2 = ½ R (2k) λ SMA N 1 PONTIANAK ( ST )

  8. Selaput Tipis • Max  2n’ d cos r = (2k + 1) ½ λ • Min  2n’ d cos r = (2k) ½ λ d = tebal lapisan r = sudut bias rk = jari-jari cincin terang ke k R = jari-jari ke lensa Θ = sudut difraksi/deviasi f = fokus n = indeks bias δ = deviasi β = sudut pembias Λ = panjang gelombang cahaya p = jarak terang dari pusat K = orde garis terang/gelap SMA N 1 PONTIANAK ( ST )

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