What is the diameter of the image on the paper?

By Rebecca
1 Min Read

A boy is trying to start a fire by focusing sunlight on a piece of paper using an equal convex lens of focal length 10 cm. The diameter of the sun is 1.39 x 109 m and its mean distance from the earth is 1.5 x 1011 m. What is the diameter of the image on the paper?

A. 9.2 x 10-4 m

B. 6.5 x 10-4 m

C. 6.5 x 10-5 m

D. 12.4 x 10-4 m

Answer:

A. 9.2 x 10-4 m

 

What is the diameter of the image on the paper?

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Rebecca is an Independent content writer for breldigital, She writes content on any given topic. She loves to write a case study article or reviews on a brand, Be it any topic, she nails it