Question

Calculate frequency of infrared radiation having wavelength 3*10^6 nm

Answer 1

Answer:

10^-11 meter

Explanation:

Answer 2

Answer:

The frequency of infrared radiation is- $10^{11}m$

Explanation:

• We know that frequency (ν) and wavelength (λ) are inversely proportional to each other.
• When one increases, the other decreases.
• When the wavelength is smaller, the frequency is larger.
• When the wavelength is larger, the frequency is smaller.
• The formula involving frequency and wavelength is:

c = λν

where,

c - speed of light ($3 * 10^{8}m/s$)

λ - wavelength (m)

ν - frequency (Hz)

Before finding the frequency, we have to convert $3 * 10^{6}nm$ to meters.

($3 * 10^{6}$) $* 10^{-9}$

= $3 * 10^{-3}m$

Now we can substitute the data in the formula.

$3 * 10^{8} = (3 * 10^{-3}) *$ ν

$\frac{3 * 10^{8} }{3 * 10^{-3} } =$ ν

$10^{11}Hz =$ ν  

Conclusion:

The frequency of infrared radiation having wavelength $3 * 10^{6}nm$ is $10^{11}m$