The focal length of a concave mirror with a radius of curvature of 20.0 cm is :
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All doubts and disputes in connection with election of the President are inquired into and decided by __________ .
Who was the first female emperor of India?
Sir Charles Wilkins is known and remembered for which of the following translations?
Which of the following plays an important role in photosynthesis?
Presence of large amounts of nutrients in waters also causes excessive growth of _________ algae.
A recurring theme in economics is that people:
When iron is exposed to moist air, a reddish brown coating of hydrated Iron (III) Oxide (Fe2O3) is deposited on its surface. This reddish brown coating is called