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Please explain with ray diagram
question image
Asked by himanshuneb | 05 Feb, 2019, 22:42: PM
answered-by-expert Expert Answer
Since moon is at infinite distance, image is formed on focal point which is at a distance 7.6 m from mirror.
 
magnitude of magnification = v/u , where v is mirror-to-image distance and u is mirror-to-object distance.
 
magnitude of magnification = 7.6 / (3.8×108 ) = 20×10-9
 
image size = 3450×103×20×10-9 = 69×10-3 m = 69 mm
Answered by Thiyagarajan K | 06 Feb, 2019, 06:55: AM

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