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CBSE Class 11-science Answered

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Asked by manali | 03 Jan, 2016, 11:37: AM
answered-by-expert Expert Answer
Let space OC space denotes space the space light space house space and space straight A space and space straight B space be space the space positions space of space both space the space ships space making space angle space of space depression space 30 degree space and space 45 degree space respectively. Let space OA space equals straight d space and space AB space equals space straight x angle OAC space equals 45 degree space and space angle OBC equals 30 degree In space increment OAC tanA equals OC over OA tan 45 degree equals 75 over straight d 75 space equals space straight d In space increment OBC tanB equals OC over OB tan 30 degree equals fraction numerator 75 over denominator straight d plus straight x end fraction fraction numerator 1 over denominator square root of 3 end fraction space equals fraction numerator 75 over denominator straight d plus straight x end fraction straight d plus straight x equals 75 square root of 3 75 plus straight x equals 75 square root of 3 straight x equals 75 square root of 3 minus 75 straight x space equals 75 open parentheses square root of 3 minus 1 close parentheses straight m The space distance space between space two space ships space is space 75 open parentheses square root of 3 minus 1 close parentheses straight m.
Answered by Vijaykumar Wani | 04 Jan, 2016, 11:41: AM

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