Find the value of cos 10 cos 20 cos 30…… cos 1800 (A) 1 (B) -1 (C) 0 (D) None of these
We know The value of Cos θ lies between -1 and 1 We also know that, cos 00 = 1 Cos... View Article
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The Battle of Buxar took place in __________ (A) 1757 (B) 1764 (C) 1765 (D) 1775
The Battle of Buxar took place in 1764. It was a battle fought between the English Forces, and a joint... View Article
Time period of a simple pendulum depends on (A) Mass of bob (B) Length of string (C) Dimension of bob (D) Material of the bob
The time period of a simple pendulum is given by, T = 2π × √(L/g) Where l is the length... View Article
The gas liberated by heating potassium permanganate (KMnO4) is:(a) Hydrogen(b) Oxygen(c) Nitrogen (d) Methane
The reaction of heating potassium permanganate is \(\begin{array}{l}KMnO_{4}\overset{\Delta }{\rightarrow}K_{2}MnO_{4}+MnO_{2}+O_{2}\end{array} \) On heating, potassium permanganate gives potassium manganate, manganese dioxide and... View Article
Is potential energy a vector or a scalar quantity?
Electric potential energy is defined as the total potential energy a unit charge will possess if located at any point... View Article
Equation: 2x – y = 4 meets at:
Given, 2x – y = 4 if y = 0, then; 2x = 4 x = 2 Thus, the line... View Article
Hybrid orbital with least s-character is: A. sp3d B. sp2 C. sp3 D. sp
Answer: A. sp3d Percental of orbital = (Number of orbital/total number of orbitals) x 100 sp3d: s-character = 1/5 x... View Article
Rearing of bees is called: A. Horticulture B. Apiary C. Apiculture D. Poultry
Answer: C. Apiculture The rearing of bees is called apiculture.
From the given choices select the odd one out: A. 8 B. 100 C. 125 D. 343
Answer: B. 100 100 is a perfect square. But 8, 125 and 343 are the perfect cubes.
Physical basis of life is: A. Cytoplasm B. Nucleoplasm C. Protoplasm D. Endoplasm
Answer: C. Protoplasm Protoplasm is the physical basis of life.
Evaluate (0.8)^3.
Given, 0.83 0.83 = 0.8 x 0.8 x 0.8 = 0.512
Define singleton set with an example. Is a set of even prime number a singleton?
Singleton set is a set that has only one element. Examples of singleton set are {9}, {x: x is a... View Article
What do you mean by poverty line?
The poverty line is the threshold line that defines the minimum requirement of income required by an individual to fulfil... View Article
(x+3)(x+7).Solve using identity.
(x+3) (x+7) By the algebraic identity, we know: (x+a)(x+b) = x2 + (a+b)x + ab (x+3)(x+7) = x2 + (3+7)x + (3.7) = x2 +... View Article
∫xe^x/(1+x)^2 is equal to:
Given, ∫xex/(1+x)2 We have to find the integral of the given expression. \(\begin{array}{l}\begin{array}{l} \text { Suppose } \mathbf{I}=\int \frac{\mathbf{x e}^{\mathrm{x}}}{(1+\mathbf{x})^{2}} \mathbf{d... View Article
NABARD was established in:
NABARD was established in 12 July 1982 by an Act of the Parliament. The full form of NABARD is National... View Article
Which antibody can cross the placenta? (a) IgE (b) IgA (c) IgG (d) IgM
Answer: (c) IgG IgG is the only antibody class that crosses the human placenta, significantly.
Which region of jammu and kashmir is known as khapa chan?
Ladakh is also known as Khapa-chan of Jammu and Kashmir, which means snow land.
The causal organism of Kala-azar is: A. Plasmodium vivax B. Leishmania donovani C. Trypanosoma lewisi D. Wuchereria bancrofti
Answer: B. Leishmania donovani
How did valli save money for her first journey? Was it easy for her?
Valli has saved every coin that came her way by resisting each temptations such as peppermints, toys, balloons, etc., painstakingly.... View Article
