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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 carnot engine working between 300 K and 600 K has a work output of 800J per cycle.
- Two sources P and Q produce notes of frequency 660 Hz each.
- The difference in the variation of resistance with temperature in a metal
- When a beam of light is used to determine the position of an object,
- A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A carnot engine working between 300 K and 600 K has a work output of 800J per cycle.
- Two sources P and Q produce notes of frequency 660 Hz each.
- The difference in the variation of resistance with temperature in a metal
- When a beam of light is used to determine the position of an object,
- A conductor of length 5 cm is moved parallel to itself with a speed of 2 m/s,
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