Example 12 of chapter 7 of 2 class
Question
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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Maths
Feb. 7, 2020, 5:01 p.m.
Answer
a wire bent in the form a square of side 15 cm.if this wire is reshaped to form a rectangle of length 20 cm, find the : perimeter of rectangle