Question

Видимый свет - это небольшой диапазон электрических волн . Максимальная длина волны соответствует красному свету и равна 7, 5 × 10-7м Определите частоту красного цвета. Скорость света с=3 ×108 м/с.

Answer 1

V = c / lambda = 3×10^8 / 7.5×10^(-7) = 0.4×10^15 = 4×10^14 Гц = 400 ТГц

Answer 2

Calculating the Frequency of Red Light

To calculate the frequency of red light, we can use the formula:

c = λν

Where: - c = speed of light = 3 × 10^8 m/s - λ = wavelength of the light = 7.5 × 10^-7 m (for red light) - ν = frequency of the light (to be calculated)

Calculation

Using the formula c = λν, we can solve for the frequency ν:

ν = c / λ

Substituting the given values: ν = (3 × 10^8 m/s) / (7.5 × 10^-7 m)

Result

Calculating the above expression gives us the frequency of red light.

ν ≈ 4 × 10^14 Hz

So, the frequency of red light is approximately 4 × 10^14 Hz.