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CBSE Class 10 Answered

Please answer the following questions:
Asked by abhinav sinha | 13 Nov, 2010, 11:12: PM
answered-by-expert Expert Answer
Dear student
Please post each question individually.
Ans 3. given, uv = 300 cm;...................(i)
                      f = 15 cm
Also, we know that , 1/u + 1/v = 1/f .........(ii)
from (i), u = 300 / v  .............................( iii)
Putiing the values of u and f, in equation (ii), the value of v can be calculated and then putiing the obtained value of v in eqn. (iii), we may find the value of u.
We hope this clarifies your doubt.
Answered by | 14 Nov, 2010, 02:27: PM
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