If the wavelength of light is 600 nm
If the wavelength of light is 600 nm and its speed is 3 × 10⁸ m/s, the frequency is approximately ________.
यदि प्रकाश की तरंगदैर्ध्य 600 nm है और उसकी चाल 3 × 10⁸ m/s है, तो आवृत्ति लगभग_____ होगी।
Detailed Solution & Logic
Correct Answer:
5 × 10¹⁴ Hz
Speed of light v = 3 $ \times 10^8 $ m/s
Wavelength $\lambda = 600 \ \text{nm} = 600 \times 10^{-9} \ \text{m}$
Formula:
$v = \lambda \nu$
Frequency,
$\nu = \dfrac{v}{\lambda}$
$\nu = \dfrac{3 \times 10^8}{600 \times 10^{-9}}$
$\nu = \dfrac{3 \times 10^8}{6 \times 10^{-7}}$
$\nu = 0.5 \times 10^{15}$
$\nu = 5 \times 10^{14} \ \text{Hz}$
Answer: $5 \times 10^{14} $ Hz
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