The Earth began to form around years ago.
(A) 13.7 billion
(B) 1,07,200
(C) 4 1/2 billion
(D) 6 billion
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The probability that a 50-years-old man will be alive at 60 is `0.83` and the probability that a 45-years-old women will be alive at 55 is `0.87.` The
Correct Answer - A::B The probability that both will be alive for 10 years, hence, i.e., the probability that the man and his wife both will be alive 10 years hence...
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The maximum age of the member of National Commission may be- (A) 60 years (B) 65 years (C) 70 years
Correct option is: (B) 65 years
2 Answers 1 views
Universe started some ……… billion years ago.
Universe started some 13.7 billion years ago.
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Human beings arrived on earth …….. years ago.
Human beings arrived on earth 1,00,000 years ago.
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About 50 years ago, the capacity of river Tungabhadra river reservoir was …………… million cubic meters.
Correct option is B) 3, 766
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Five years ago, the sum of the ages of a father and two sons was \( x \) years, then after five years, the sum of the ages of all will be years.
5 years after age of each of father and his two sons will be 10 years more than it was 5years ago. Hence after 5years the sum of thieir age...
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Time period of revolution of a satellite around a planet of radius R is T. Period of revolution around another planet whose radius is 3R is
Correct option is: (A) T Period of resolution \(T = 2 \pi \sqrt \frac{R^3}{GM} \) \(T = 2 \pi \sqrt \frac{R^3}{G \frac{4}{3} \pi R^3 \rho} \) The period of revolution depends upon the density of...
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Time period of revolution of a satellite around a planet of radius R is T. Period of revolution around another planet whose radius is 3R is
2 Answers
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If R is the radius of the Earth and g is the acceleration due to gravity on the Earth’s surface, the mean density of the Earth is
Correct option is: (D) \(\frac{3g}{4\pi RG}\)
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Identify true or false statements (i) Conventional plant breding is in practice from `9,000-11,000` years ago. (ii) Recombinant progeny is self -polln
Correct Answer - (i) True (ii) False, homozygosity (iii) False, 11 million tonnes to 75 million tonnes
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