(a) What is the intensity (in W/cm?) on the retina when looking directlyat the sun? Assume that the eye's pupil has a radius rpupil = 1 mm.Take the Sun's irradiance at the earth's surface to be 1.1 kW/m?, andneglect refractive index (i.e. set n = 1). HINT: The Earth-Sun distanceis do = 1.5 x 108 km and the pupil-retina distance is dį = 22 mm. Theradius of the Sun rsun = 7.0 × 105 km is de-magnified on the retinaaccording to the ratio d;/do.

Power of Sun per unit area is 1.1×103 Wm2Power recieved by Pupil, P=Power of Sun per unit…

Answered: (a) What is the intensity (in W/cm?) on…

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