Q15.As shown in the figure, after passing through the medium 1. The speed of light 𝑣2 in medium 2 will be : (Given 𝑐= 3 × 108 m s-1 ) (1) 1 . 0 × 108 m s-1 (2) 0 . 5 × 108 m s-1 (3) 1 . 5 × 108 m s-1 (4) 3 . 0 × 108 m s-1
What This Question Tests
This question involves applying Snell's Law to find the refractive index of the second medium and then using the definition of refractive index to calculate the speed of light in that medium.
Concepts Tested
Formulas Used
n = c/v
n1 sinθ1 = n2 sinθ2
📚 NCERT Sections This Tests
10.3 — (A) The Refractive Index Of Glass Is 1.5. What Is The Speed Of Light In
Physics Class 12 · Chapter 10
10.3 (a) The refractive index of glass is 1.5. What is the speed of light in glass? (Speed of light in vacuum is 3.0 × 108 m s–1) (b) Is the speed of light in glass independent of the colour of light? If not, which of the two colours red and violet travels slower in a glass prism?
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.
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
📋 Question Details
- Chapter
- Ray Optics
- Topic
- Refraction
- Year
- 2022
- Shift
- 28 Jul Shift 1
- Q Number
- Q15
- Type
- MCQ
- NCERT Ref
- Class 12 Physics Ch 9: Ray Optics and Optical Instruments
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