Sol: Given: \(\begin{array}{l}\frac{dx}{dy} – \frac{x}{y} = 0\end{array} \) \(\begin{array}{l}\Rightarrow \frac{dy}{dx} = \frac{x}{y}\\\Rightarrow \frac{dy}{y} = \frac{dx}{x}.\end{array} \) Integrating both sides, log... View Article
Any physical change or chemical change does not change the nature of radiation emitted by the substance and the rate... View Article
The correct answer is (D)1:81. The moment of inertia of a disc about its central axis is \(\begin{array}{l}I = \frac{1}{2}mR^{2}\\\Rightarrow... View Article
The correct answer is (D)Total internal reflation. Explore more such questions and answers at BYJU’S.
The volume of liquid is more than the volume of solid as the particles of liquids are packed freely and... View Article
The energy stored is Elastic Potential energy. When a rubber band is stretched, the energy transferred to the band is... View Article
Sol: Let p represents the probability of getting head in a toss of a coin. So p = \(\begin{array}{l} \frac{1}{2}... View Article
Carbon generally forms compounds by covalent bonds because carbon (C) has an electronic configuration of 1s2 2s2 2p2 here; carbon... View Article
Wooden or Concrete sleepers are kept below the railway line because the weight of the passing train is spread over... View Article
Alloy manganin, copper-nickel alloy(constantan) and alloys of nickel, chromium and iron (nichrome) are used for Meter Bridge wire because: They... View Article
Difference between Efflorescence and Deliquescence: Efflorescence Deliquescence Efflorescent substances are crystals Deliquescent substances are called desiccants. These substances do not... View Article
When two or more compounds combine to form one compound, this type of reaction is called a combination reaction. Example:... View Article
An antiseptic is an antimicrobial substance applied on the skin or wounds, cuts, ulcers, and other infected surfaces. Isopropyl Alcohol,... View Article
(A) Thalamus (B) Nucellus (C) Ovary (D) Endosperm Answer: Thalamus is the fleshy edible part of apple. Hence option A... View Article
Answer: [tan θ/(1 – cot θ) ]+[ cot θ/(1 – tan θ)] = [ tan θ/(1 – 1/tanθ) ] +... View Article
Answer. 9999999 is the largest 7 digit number.
(A) Indira Gandhi canal (B) Upper Bari Doab canal (C) Yamuna canal (D) Sirhind canal Answer: Indira Gandhi canal is... View Article
(A) Saraswati (B) Banganga (C) Chambal (D) Menda Answer: The longest river of Rajasthan is Chambal. Hence option C is... View Article
Answer: Given number is 1764. We group the numbers 17, 64. Place a bar over every pair of digits starting... View Article
Answer: Given x/2 – x/3 = x/4 + 1/2 Find the LCM of the denominators. LCM of 2, 3 and... View Article
