The centre of the reflecting surface of a spherical mirror is a point called the ___.
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June 21 marks the winter solstice in the _________ Hemisphere.
Which layer of earth is liquid?
The crust and the inner core are solid, whereas the outer core and inner mantle are liquid. The outer mantle is semi solid.
A ball, thrown vertically upward, rises to a height of 80 m and returns to its original position. The magnitude of its displacement after 7 s of motion will be ____. (take g = 10 m/s2)
What is meant by a dedicated computer?
At which rate, Reserve Bank of India borrows money from commercial banks?
Acid rain is caused by release of ___ and___ into the air.