Yokka Stars

Task id13185

Task id13185

Seller: nerdmavr

Price: 0.15 USD

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Product description

A point source of light is located at a distance a = 20 cm from a concave spherical mirror of radius R = 50 cm. Find the illumination of the screen at a distance d = 60 cm from the surface of the mirror, if at a distance d1 = 100 cm the illumination is E1 = 290 lux.

Additional information

Short solution. Format gif