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The frequency of light ray having the wavelength 3000Å is
Options
(a) 9×10¹³ cycle/sec
(b) 10¹⁵ cycle/sec
(c) 90 cycle/sec
(d) 3000 cycle/sec
Correct Answer:
10¹⁵ cycle/sec
Explanation:
n = v / λ = 3 × 10⁸ / 3000 × 10⁻¹° = 10¹⁵ cycle/sec.
Related Questions: - A particle having a mass of 10⁻² kg carries a charge of 5 x 10⁻⁸C
- Two spheres of mass m and M are situated in air and the gravitational force
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A particle having a mass of 10⁻² kg carries a charge of 5 x 10⁻⁸C
- Two spheres of mass m and M are situated in air and the gravitational force
- The refracting angle of a prism is A and refractive index of the material of the prism
- The potential energy of particle in a force field is U = A/r² – b/r, where A and B
- The pressure at the bottom of a tank containing a liquid does not depend on
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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Answer is wrong. should be 10(to power 17)/s