Question

what will be the speed of light in water if wavelength is 2m and frequency is 7hz​

Answer 1

Answer:

Frequency (f) and wavelength (λ) are joined by the equation fλ = c, where c is the speed of light. As the speed of light is constant, if you increase the frequency, the wavelength must decrease to maintain this equation and vice versa

Answer 2

Answer:

14 m/s

Explanation:

Given:

• Wavelength = λ = 2 m
• Frequency = ν = 7 Hz

To find:

• Speed of light = ?

Solution:

For speeding speed of light in any medium apply this formula:

V = λν

Here:

• V stands for velocity or speed of light

Substitute the given values in this formula

⇒ V = 2 × 7

⇒ V = 14 m/s

∴ Speed of light in water = 14 m/s

KNOW MORE:

• The Frequency of any sound wave is the reciprocal of Time period.