The radius of curvature of a concave mirror is 30 cm. Following Cartesian Sign Convention, its focal length is expressed as
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Earth is the _______ planet from the Sun.
In 1981, ISRO launched India's first geostationary satellite called -
Which river does not form a delta?
Which of the following has open vascular system?
Who discovered the ABO blood group system?
____ tissue changes the diameter of a blood vessel.
Who wrote the book, 'Indian Home Rule'?
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