Chords PQ and RS of a circle extended externally intersect at point T. Length of the segment PT, if lengths of QT, RT and ST are 9 cm, 18 cm and 6 cm respectively, is
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Which of the following statements about DNA replication is true?
Select the word with the correct spelling.
The World Music Day is celebrated across the world on
The World Music Day is celebrated across the world on 21 June.
The day is also known as 'Fete de la Musique' after a music festival that began in France in 1982.
This Day was first celebrated on 21st June 1982.
In the following question, out of the given four alternatives, select the one which is opposite in meaning of the given word.
Defile
The study of brain is called
The study of brain is called Phrenology.
Speed of light is maximum in _____.
Upward force on a floating body is called _______.