| ⇦ | 
| ⇨ |
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 resistance R draws power P when connected to an AC source. If an inductance
- If the wavelength of incident light falling on a photosensitive material decreases,
- The dimensions of magnetic field intensity B are
- If the terminal speed of a sphere of gold (density=19.5 kg/m³) is 0.2 m/s
- Minimum and maximum values of Poisson’s ratio for a metal lies between
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A resistance R draws power P when connected to an AC source. If an inductance
- If the wavelength of incident light falling on a photosensitive material decreases,
- The dimensions of magnetic field intensity B are
- If the terminal speed of a sphere of gold (density=19.5 kg/m³) is 0.2 m/s
- Minimum and maximum values of Poisson’s ratio for a metal lies between
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Answer is wrong. should be 10(to power 17)/s