Find HCF and LCM of 24 and 36 by prime factorisation method.
Answer: Highest Common Factor or HCF is the largest common divisor or gcd of two or more positive integers, as... View Article
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Write additive inverse and multiplicative inverse of 1/5.
Answer: Additive inverse An additive inverse of a number is known as the value, resulting in a zero value when... View Article
Rahul can finish one-fifth of his homework in one hour. Neha can finish three-sevenths of her homework in one hour thirty minutes and Riya can finish three fourth of her homework in three hours thirty minutes. If all of them start their homework at 12.00 p.m. And can go to play as soon as they all finish their homework, when can they start to play if they take a break at 3.30 p.m. For thirty minutes?
Answer: Rahul can finish one-fifth of his homework in 1 hour. So, the time needed to complete his full homework... View Article
Praying Mantis is a good example of _______?
Answer: Camouflage Camouflage is the manner the colour or shape of an animal matches its surroundings and makes it hard... View Article
What is the answer for 2 √3 whole square?
Answer: 12 Given (2√3)2 ⇒ 2√3 × 2√3 ⇒ 2 × 2 × √3 × √3 ⇒ 4 × 3... View Article
Applications of ohms law used in daily life?
Answer: Ohm’s law states that the voltage across a conductor is directly proportional to the current flowing through it, provided... View Article
What is step-deviation method explain with an example?
Answer: Mean is an arithmetic average of the given data set which can be determined by separating the sum of... View Article
How to find three rational number between two numbers?
Answer: An irrational number is a real number that can not be expressed as an integer ratio, such as √2,... View Article
How to find the square root of 343?
Answer: If the square root of 343 leads to a whole number then 343 is a perfect square. The square... View Article
If cos θ + sin θ = √2cos θ , then prove that cos θ – sin θ = √2sin θ
Answer: Given cos θ + sin θ = √2cos θ Squaring both side, we get (cos θ + sin θ)2... View Article
Hooke’s Law holds good up to (1) Yield point (2) Limit of Proportionality (3) Breaking Point (4) Elastic Limit
Answer: (2) Limit of Proportionality Hooke’s law states that the strain of the material is proportional to the applied stress... View Article
Which of the following reactions is an endothermic reaction? (1) Burning of coal. (2) Decomposition of vegetable matter into compost. (3) Process of respiration. (4) Decomposition of calcium carbonate to form quick lime and carbon dioxide.
Answer: (4) Decomposition of calcium carbonate to form quick lime and carbon dioxide Endothermic reactions are chemical reactions wherein heat... View Article
Which acid is present in lemon?
Answer: The acid present in lemon is citric acid. Citric acid is a weak organic acid which naturally occurs in... View Article
Find out the applications of all the inert gases.
Answer: The noble gases, also recognized as inert gases and aerogens, are the elements of the modern periodic table in... View Article
How to calculate the value of sin, cos, sec, cosec, tan and cot?
Answer: Trigonometric functions or circular functions are defined as the functions of an angle of a right-angled triangle. There are... View Article
What is an empirical formula?
Answer: Empirical equations are the easiest type of notation. For a substance, the molecular formula is equivalent to its empirical... View Article
What is the formula of log (1/x)?
Answer: -\log x\end{array} \) \(\begin{array}{l}\log (\frac{1}{x})= \log x^{-1}\end{array} \) \(\begin{array}{l}\log (\frac{1}{x})= -\log x\end{array} \)
What is the formula of ncn?
Answer: 1 We have to find the formula for \(\begin{array}{l}_{n}C^{n}\end{array} \) We know that \(\begin{array}{l}_{n}C^{r}= \frac{n!}{r!(n-r)!}\end{array} \) \(\begin{array}{l}_{n}C^{n}= \frac{n!}{n!(n-n)!}\end{array} \)... View Article
What prevents the backflow of blood inside the heart during contraction? (1) Valves in the heart (2) Thick muscular walls of ventricles (3) Thin walls of atria (4) All of the above.
Answer: (1)Valves in the heart Walls in the heart are accountable only for blood pumping, and during contraction, they are... View Article
Which of the following is used in pencils? (1) Graphite (2) Silicon (3) Charcoal (4) Phosphorous.
Answer: (1) Graphite Black substance inside a pencil is graphite. Yes, current will flow through the electrical circuit since graphite... View Article
