Find the luminous flux of 10 W source of 600 nm. The relative luminosity at 600 nm is 0.6.

Explanation

To find the luminous flux of a 10 W source at a wavelength of 600 nm with a relative luminosity of 0.6, we can follow these steps:

### Step 1: Understand the relationship between luminous flux and relative luminosity
Relative luminosity (L) is defined as the ratio of the luminous flux (Φ) of a light source at a specific wavelength to the luminous flux at 555 nm (the peak sensitivity of the human eye) for the same power input.

### Step 2: Identify the luminous flux at 555 nm
It is known that 1 watt of light at 555 nm corresponds to 685 lumens. Therefore, for a 10 W source at 555 nm, the luminous flux can be calculated as follows:
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