| ⇦ | 
| ⇨ |
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 radioactive element forms its own isotope after 3 consecutive disintegrations.
- A mass of 2.0 kg is put on a flat plan attached to a vertical spring fixed on the ground
- A rod of 10 cm length is moving perpendicular to uniform magntic field of intensity
- A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest
- A particle starts its motion from rest under the action of a constant force
Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A radioactive element forms its own isotope after 3 consecutive disintegrations.
- A mass of 2.0 kg is put on a flat plan attached to a vertical spring fixed on the ground
- A rod of 10 cm length is moving perpendicular to uniform magntic field of intensity
- A simple pendulum is suspended from the ceiling of a lift. When the lift is at rest
- A particle starts its motion from rest under the action of a constant force
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