Question

of this convex lens so as to obtain an image which is real, inverted and same size as the
object?
12. What is spectrum? Draw a labelled diagram to show the formation of spectrum. Name the
various colours of spectrum.
13. (a) How does the embryo get nourishment inside the mother's body?
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Answer 1

11 . Keep it at Centre of curvature

12. Spectrum is a band of 7 colours (VIBGYOR) which form a rainbow

Below you will see the diagram

Various colors of Spectrum are - Violet , Indigo , Blue ,Green ,Yellow , Orange Red etc

13 (A) Embryo gets nourishment from a tissue called placenta