The 12th term of an AP is -13 and the sum of its first four terms is 24. Find the sum of its first 10 terms.
Let a be the first term and d be the common difference of given AP. Given, a12 = -13 a... View Article
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Why are ball bearings used in machinery?
Ball bearings are used in machinery for reducing the friction between the loads and axles.
Who built the Kailashnath temple at Ellora?
Rashtrakuta king Krishna I built the Kailashnath temple at Ellora.
The Lenz’s law gives
(a) the direction of the induced current(b) the magnitude of the induced emf(c) both the magnitude and direction of the... View Article
Increased IMR and decreased MMR in a population will
(a) cause rapid increase in growth rate (b) result in decline in growth rate (c) not cause significant change in... View Article
Green revolution refers to
(a) Maintaining soil fertility(b) Use of green plants for covering the Earth(c) Development of new crop varieties which helped to... View Article
In histogram, the height of rectangle shows
(a) Width of the class (b) Upper limit of the class (c) Lower limit of the class (d) Frequency of... View Article
What is the most difficult challenge faced by independent India?
(a) Malnutrition(b) Child labour(c) Unemployment(d) PovertyCorrect option: (d) PovertyPoverty is the most difficult challenge faced by independent India.
Which one of the following is more acidic?
(a) Butane(b) 1-Butene(c) 1-Butyne(d) 2-ButyneCorrect option: (c) 1-Butyne1-Butyne is more acidic among the given compounds.
If a letter of English alphabet is chosen at random then what is the probability that the letter is a consonant?
English alphabets = 26 letters (5 vowels + 21 consonants) Total number of outcomes = n(S) = 26 Let A... View Article
Diuresis is the condition in which
(a) the excretory volume of urine increases(b) the excretory volume of urine decreases(c) the kidneys fail to excrete urine(d) the... View Article
Coke is used in the manufacture of which of the following?
(a) Iron(b) Lead(c) Steel(d) CopperCorrect option: (c) SteelCoke is used in the manufacture of steel.
Hepatic portal system starts from
(a) Digestive system to liver (b) Kidney to liver (c) Liver to heart (d) Liver to kidney Correct option: (a)... View Article
The symbol of fluorine is
(a) F(b) Fl(c) Fr(d) PCorrect option: (a) FThe symbol of fluorine is F.
The number of structural isomers of C5H10 is ____.
The number of structural isomers of C5H10 is 10.
Find the principal value of cot-1(√3).
We know that, cot (π/6) = √3 cot-1(√3) = cot-1(cot π/6) = π/6 Also, the range of principal value of... View Article
Bijapur is known for its
(a) severe drought condition(b) Gol Gumbaz(c) heavy rainfall(d) statue of GomateswaraCorrect option: (b) Gol GumbazBijapur is known for its Gol... View Article
The battle of Khanwa took place in ________.
The battle of Khanwa took place in 1527 near the village of Khanwa, in Bharatpur District of Rajasthan.
All eukaryotic unicellular organisms belong to
(a) Monera(b) Protista(c) Fungi(d) BacteriaCorrect option: (b) ProtistaAll eukaryotic unicellular organisms belong to Protista.
Find the value of k for which the system of equations kx – y = 2 and 6x – 2y = 3 has a unique solution.
The given system of equations are:kx – y = 26x – 2y = 3These can be written as:kx – y... View Article
