Question

What is the irradiance of the sun dependent on?(1 point)
Responses

the number of sunspots
the number of sunspots

the wavelength of the radiant energy it emits
the wavelength of the radiant energy it emits

the density of particles in the solar wind
the density of particles in the solar wind

the energetic solar wind particles

Answer 1

The irradiance of the sun is primarily dependent on **the wavelength of the radiant energy it emits**. The sun emits energy across a range of wavelengths, with variations in intensity at different wavelengths, which impacts the solar irradiance measured at the Earth's surface. While other factors like sunspots and solar wind can influence solar phenomena, they do not directly define solar irradiance in a fundamental way.