Two convex lens having power +2D and +5D are combined together, their equivalent focal length is
a) 50cm
b) 30cm
c) 20cm
d) 70 cm
Answers
Answered by
1
Explanation:
dirty --- clothes
interesting---stories
some---people
fifty---stars
old ---man
huge---palace
hard --- metal
beautiful---princess
ripe---mangoes
bright---students
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Answered by
1
Answer:
Your answer is 20cm.
Explanation:
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