Answer / sandhya

It is the defect of the eyes.In this case eye cannot
distinguish the colours.All colours appears the same.This
is due to the defect in cones and due to the deficiency of
Iodopsin the pigment present in cones.

A wheel of perimetre 220cm rolls ona level road at a speed of 9 km per hr.how many revolutions does the wheel make per second?

1 Answers  

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