Express refractive index of Medium 2 with respect to Medium 1 in terms of speed of light in two media.
Express refractive index of Medium 2 with respect to Medium 1 in terms of speed of light in two media.
Show Hint
Solution and Explanation
The refractive index of Medium 2 with respect to Medium 1 is given by the formula: \[ n_{2/1} = \frac{c_1}{c_2} \] Where:
- \( c_1 \) is the speed of light in Medium 1,
- \( c_2 \) is the speed of light in Medium 2.
Top Questions on Refraction
- An air bubble is trapped at point P (CP = 1.75 cm) in a spherical glass ball (n = 1.5) of radius 7 cm as shown in the figure. Find the nature and position of the image when viewed from side B. Show the image formation by drawing a ray diagram.
Give reasons:
(i) The sky appears dark to passengers flying at very high altitudes.
At very high altitudes, passengers are above the atmosphere where there is less scattering of sunlight. As a result, they do not see the scattered blue light and the sky appears dark, similar to the condition experienced by astronauts in space.
(ii) 'Danger' signal lights are red in color.- CBSE Class X - 2025
- Science
- Refraction
- A beam of light of wavelength 720 nm in air enters water (refractive index \( n = \frac{4}{3} \)). Its wavelength in water will be:
- Use Ampere’s law to derive the expression for the magnetic field due to a long straight current-carrying wire of infinite length.
- A glass slab (\( \mu = 1.5 \)) of thickness 6 cm is placed over a paper. The shift in the letters printed on the paper will be:
Questions Asked in CBSE X exam
- Name the type of lenses required by the persons for the correction of their defect of vision called presbyopia. Write the structure of the lenses commonly used for the correction of this defect giving reason for such designs.
How is the brain protected in our body?
- CBSE Class X - 2025
- Brain Structure
- Describe the historical factors that contributed to the emergence of nationalist tensions in the Balkans.
- CBSE Class X - 2025
- The Rise of Nationalism in Europe
आप नव्या / भव्य हैं। विद्यालय में नामांकन के समय आपकी जन्मतिथि गलत दर्ज हो गई है। दसवीं के पंजीकरण से पहले आप इसे सुधरवाना चाहते हैं। जन्मतिथि में सुधार हेतु निवेदन करते हुए प्रधानाचार्य को लगभग 80 शब्दों में एक ई-मेल लिखिए।
- CBSE Class X - 2025
- पत्र लेखन
आप अदिति / आदित्य हैं। आपकी दादीजी को खेलों में अत्यधिक रुचि है। ओलंपिक खेल-2024 में भारत के प्रदर्शन के बारे में जानकारी देते हुए लगभग 100 शब्दों में पत्र लिखिए।
- CBSE Class X - 2025
- पत्र लेखन