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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
- A force F=ai+3j+6k is acting at a point r=2i-6j-12k. The value of α for
- A solid which is transparent to visible light and whose conductivity increases
- A body of mass (4m) is lying in x-y plane at rest. It suddenly explodes into three
- We get Balmer series when electron comes from
- White light reflected from a soap film (Refractive Index =1.5) has a maxima
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