Q23.Let the x −z plane be the boundary between two transparent media. Medium 1 in z ≥0 has a refractive index of √2 and medium 2 with z < 0 has a refractive index of √3 . A ray of light in medium 1 given by the vector →A = 6√3^i + 8√3^j −10^k is incident on the plane of separation. The angle of refraction in medium 2 is (1) 45∘ (2) 60∘ (3) 75∘ (4) 30∘
What This Question Tests
This question requires calculating the angle of incidence from the incident ray vector and the normal to the surface, and then applying Snell's Law to find the angle of refraction.
Concepts Tested
Formulas Used
n₁ sinθ₁ = n₂ sinθ₂
cosθ = |A · n̂| / |A|
📚 NCERT Sections This Tests
9.4 — Figures 9.27(A) And (B) Show Refraction Of A Ray In Air Incident At 60°
Physics Class 12 · Chapter 9
9.4 Figures 9.27(a) and (b) show refraction of a ray in air incident at 60° with the normal to a glass-air and water-air interface, respectively. Predict the angle of refraction in glass when the angle of incidence in water is 45° with the normal to a water-glass interface [Fig. 9.27(c)]. FIGURE 9.27
9.6 — A Prism Is Made Of Glass Of Unknown Refractive Index. A Parallel
Physics Class 12 · Chapter 9
9.6 A prism is made of glass of unknown refractive index. A parallel beam of light is incident on a face of the prism. The angle of minimum deviation is measured to be 40°. What is the refractive index of the material of the prism? The refracting angle of the prism is 60°. If the prism is placed in water (refractive index 1.33), predict the new angle of minimum deviation of a parallel beam of light.
10.1 — Monochromatic Light Of Wavelength 589 Nm Is Incident From Air On A
Physics Class 12 · Chapter 10
10.1 Monochromatic light of wavelength 589 nm is incident from air on a water surface. What are the wavelength, frequency and speed of (a) reflected, and (b) refracted light? Refractive index of water is 1.33.
📋 Question Details
- Chapter
- Ray Optics
- Topic
- Snell's Law and Vector Optics
- Year
- 2011
- Shift
- Unknown
- Q Number
- Q23
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 9: Ray Optics and Optical Instruments
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