Physicswallah Lecturer Interview Questions and Answers

Q1. What is polynomial
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Q1. What is Remainder Theorem?
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Remainder Theorem states that if a polynomial f(x) is divided by x-a, then the remainder is f(a).
• It is used to find the remainder when a polynomial is divided by a linear factor.

• The remainder theorem is a consequence of the division algorithm for polynomials.

• For example, if f(x) = x^3 + 2x^2 - 5x + 3 and we want to find the remainder when f(x) is divided by x-2, we substitute 2 for x in f(x) to get f(2) = 11. Therefore
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Q2. What are real Numbers & Complex Numbers? Is Zero a complex Numbers?
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Real numbers are numbers that can be found on the number line, while complex numbers are numbers that involve imaginary numbers. Zero is not a complex number.
• Real numbers include integers, fractions, and decimals.

• Complex numbers involve the square root of negative numbers, denoted by 'i'.

• Zero is a real number, but not a complex number.

• Examples of complex numbers include 3 + 2i and -4i.
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Q1. Define gypsum with formula
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Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O.
• Gypsum is commonly used in construction as a material for making plaster of Paris and drywall.

• It is also used in agriculture as a soil conditioner to improve soil structure.

• The chemical formula for gypsum is CaSO4·2H2O, indicating that it contains calcium, sulfur, and water molecules.
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Q2. Tell about baking powder
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Baking powder is a leavening agent used in baking to help baked goods rise.
• Baking powder is a combination of an acid (usually cream of tartar) and a base (usually baking soda).

• When mixed with liquid and heat, baking powder releases carbon dioxide gas, causing the batter or dough to rise.

• There are different types of baking powder, such as single-acting and double-acting.

• Double-acting baking powder reacts twice - once wh...read more
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