Jawapan Buku Teks Fizik Tingkatan 4 Kssm Aktiviti 13 Top Full [OFFICIAL]

Using Snell’s Law: n₁ sin i = n₂ sin r 1.33 × sin 35° = 1.00 × sin r 1.33 × 0.574 = sin r sin r = 0.763 r = sin⁻¹ (0.763) = 49.8° Section C: Total Internal Reflection (Aktiviti 13.3) Question: The critical angle for diamond is 24.4°. Calculate the refractive index of diamond.

Real, inverted, magnified. Section E: Optical Instruments (Aktiviti 13.5 – Periscope) Question: Draw a labelled diagram of a periscope using two prisms. Explain how total internal reflection helps in image formation. Using Snell’s Law: n₁ sin i = n₂ sin r 1

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1/10 = 1/15 + 1/v 1/v = 1/10 – 1/15 = (3 – 2)/30 = 1/30 v = 30 cm (Image distance) 🚀 1/10 = 1/15 + 1/v 1/v =