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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: - In forward biasing of the p-n junction
- In a diffraction pattern due to a singleslit of width a, the first minimum is observed
- A ray of light is incident at an angle of incidence i, on one face of a prism
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In forward biasing of the p-n junction
- In a diffraction pattern due to a singleslit of width a, the first minimum is observed
- A ray of light is incident at an angle of incidence i, on one face of a prism
- A drum of radius R and mass M, rolls down without slipping along an inclined plane
- A circular disc of radius 0.2 meter is placed in a uniform magnetic field of induction
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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