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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.
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The depth at which the effective value of acceleration due to gravity is g/4
- A copper disc of radius 0.1 m is rotated about its centre, with 10 revolutions
- The radius of gyration of a solid sphere of radius r about a certain axis is r
- When the length of the vibrating segment of a sonometer wire is increased by
- If r be the distance of a point on the axis of a magnetic dipole from its centre
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