Q12.If a wave gets refracted into a denser medium, then which of the following is true? (1) Wavelength, speed and frequency decreases. (2) Wavelength increases, speed decreases and frequency remains constant. (3) Wavelength and speed decreases but frequency (4) Wavelength, speed and frequency increases. remains constant.
What This Question Tests
This conceptual question tests the understanding of how wavelength, speed, and frequency of a wave change when it refracts from a rarer to a denser medium.
Concepts Tested
Formulas Used
v = fλ
n = c/v
📚 NCERT Sections This Tests
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.
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?
10.2 — What Is The Shape Of The Wavefront In Each Of The Following Cases:
Physics Class 12 · Chapter 10
10.2 What is the shape of the wavefront in each of the following cases: (a) Light diverging from a point source. (b) Light emerging out of a convex lens when a point source is placed at its focus. (c) The portion of the wavefront of light from a distant star intercepted by the Earth.
📋 Question Details
- Chapter
- Wave Optics
- Topic
- Refraction of waves
- Year
- 2022
- Shift
- 27 Jun Shift 2
- Q Number
- Q12
- Type
- Conceptual
- NCERT Ref
- Class 12 Physics Ch 10: Wave Optics
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