| ⇦ | 
| ⇨ |
The frequency of a light wave in a material is 2 x 10¹⁴ Hz and wavelength is 5000Å. The refractive index of material will be
Options
(a) 1.5
(b) 3
(c) 1.33
(d) 1.4
Correct Answer:
3
Explanation:
By using v = nλ , n = 2 x 10¹⁴ Hz
λ = 5000Å = 5000 x 10⁻¹⁰ m
v = 2 x 10¹⁴ x 5000 x 10⁻¹⁰ = 10⁸ m/s
Refractive index of the material,
µ = c / v = 3 x 10⁸ / 10⁸ = 3
Related Questions: - A wire carrying current I has the shape as shown in adjoining figure. Linear parts
- The internal energy change in a system that has absorbed 2 kcals of heat
- If emf induced in a coil is 2 V by changing the current in it from 8 A to 6 A
- A block of mass m is moving on a wedge with the acceleration aᵒ
- Dimensions formula for surface tension is
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A wire carrying current I has the shape as shown in adjoining figure. Linear parts
- The internal energy change in a system that has absorbed 2 kcals of heat
- If emf induced in a coil is 2 V by changing the current in it from 8 A to 6 A
- A block of mass m is moving on a wedge with the acceleration aᵒ
- Dimensions formula for surface tension is
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply