I don't know the height of a tree but let me assume as H but its shadow measurement is 840cm so how can I find his height sir??
Question
Maths
Feb. 7, 2020, 10:51 p.m.
Answer
A lens produces a magnification of-0.5. Is this converging or diverging lens? If the focal lengthif the lens is 6 cm, draw a ray diagram showing the image formation in this case.
why do we get different answer with completing square method for this question??
The numerator of a fraction is 3 less than the denominator.if both the the numerator and denominator are increased by 2, the new fraction becomes 6/7. Find the original fraction
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