The reflection formed by the plane mirror is ________________.
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The work done by centripetal force is ______.
A sound of single frequency is called a
What is the accepted average Calorie requirement for rural area in India?
In HTML, ______________ pair defines a row of the table.
The method of soil conservation in which ploughing is done parallel to the contours of a hill slope to form a natural barrier for water to flow down the slop is called?
From where was Mangalyan launched?
Mercury is the _______ planet from the Sun.