Question

Construct the tangent to a circle of
radius 4 cm from a point on the
concentric circle of radies 6 cm & measure its
length. Also verity, the
measurement by actual calculation
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Answer 1

Answer:

Long answer 4- If a transparent ruler is held in sunlight, we see various colors because sunlight is white light and it has seven colors .When rays of light after passing through ruler splits into seven colours .This band of seven colours is known as spectrum. The splitting of white light into seven colours is known as dispersion of light.

Answer 2

Answer:

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