An object is placed 21 cm from a concave lens of focal length 25 cm. what is the magnification?
1 answer:
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Answer: 0.1
Step-by-step explanation:
Given
Bag-I has 2 blue,3 orange, 5 red
Bag-II has 4 Pink,10 blue, 6 brown
No of ways of choosing a blue marble from bag-I
Total no of ways of choosing a marble from bag-I
No of ways of choosing a blue marble from bag-II
Total no of ways of choosing a marble from bag-II
The probability that he will pull out a blue marble from each bag is
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x + 2x + 9y - 7y
3x + ( 9y - 7y )
3x + 2y
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