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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 magnetic field of 1600 A/m produces a magnetic flux of 2.4 x 10⁻⁵ Wb
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A magnetic field of 1600 A/m produces a magnetic flux of 2.4 x 10⁻⁵ Wb
- The ratio of volumes of nuclei (assumed to be in spherical shape) with respective
- Which of the following combinations should be selected for better tuning of an L-C-R
- A circular disc rolls down an inclined plane.The ratio of rotational kinetic energy
- Electrons used in an electron microscope are accelerated by a voltage of 25 kV
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