1. **State the problem:** We need to find the time it takes for light to travel from the Sun to the Earth. 2. **Given data:** - Speed of light, $v = 3 \times 10^{8}$ meters/second - Distance from Sun to Earth, $d = 1.5 \times 10^{11}$ meters 3. **Formula used:** Time is calculated by dividing distance by speed: $$t = \frac{d}{v}$$ 4. **Substitute the values:** $$t = \frac{1.5 \times 10^{11}}{3 \times 10^{8}}$$ 5. **Simplify the fraction:** $$t = \frac{\cancel{1.5} \times 10^{11}}{\cancel{3} \times 10^{8}} = 0.5 \times 10^{3}$$ 6. **Express in proper scientific notation:** $$0.5 \times 10^{3} = 5 \times 10^{2}$$ 7. **Final answer:** The light takes $5 \times 10^{2}$ seconds to reach the Earth from the Sun.