Question

Infrared radiation from young stars can pass through the heavy dust clouds surrounding them, allowing astronomers here on Earth to study the earliest stages of star formation, before a star begins to emit visible light. Suppose an infrared telescope is tuned to detect infrared radiation with a frequency of 4.39 THz. Calculate the wavelength of the infrared radiation.

Answer 1

`\lambda=6.83* 10^(-5)\ m`

Step-by-step explanation:

Given that,

An infrared telescope is tuned to detect infrared radiation with a frequency of 4.39 THz.

We know that,

1 THz = 10¹² Hz

So,

f = 4.39 × 10¹² Hz

We need to find the wavelength of the infrared radiation.

We know that,

`\lambda=(c)/(f)\\\\\lambda=(3* 10^8)/(4.39* 10^(12))\\\\=6.83* 10^(-5)\ m`

So, the wavelength of the infrared radiation is
`6.83* 10^(-5)\ m`.