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Divide the given polynomial by the given monomial: (3y⁸ – 4y⁶ + 5y⁴) ÷ y⁴

Answer: 3y4 - 4y2 + 5 The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to... View Article

Divide the given polynomial by the given monomial: (5x² – 6x) ÷ 3x

Answer: (5x - 6)/3 The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to... View Article

Divide the given polynomial by the given monomial: (p³q⁶ – p⁶q³) ÷ p³q³

Answer: (q3 - p3) The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to calculate... View Article

Divide the given polynomial by the given monomial: (x³ + 2x² + 3x) ÷ 2x

Answer: 1/2 (x2 + 2x + 3) The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to... View Article

Divide the given polynomial by the given monomial: 8(x³y²z² + x²y³z² + x²y²z³)÷ 4x²y²z²

Answer: 2(x + y + z) The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to... View Article

Do Liquids Conduct Electricity?

Answer: Liquid conduct electricity because they have free ions as in acids, bases and salts being dissolved in water. Water from the tap and... View Article

Do stars emit light only during night?

Answer: Stars emit light all the time, but because to the sun's excessive brightness, we can't see them daytime. Stars produce light by... View Article

Does any part of our body vibrate when we speak? Name the part.

Answer: The larynx or vocal cords vibrate when we speak. The larynx, or voice box, is located in the upper part of the human body and produces... View Article

Does pure water conduct electricity? If not, what can we do to make it conducting?

Answer: Pure water does not conduct electricity. Electrical conductivity is nothing but the measure of the capability of the material to pass... View Article

Does the force of gravitation exist between two astronauts in space?

Answer: Yes, there will be a gravitational force between the astronauts because the universal law of gravitation states that every item in the... View Article

Does the force of gravity act on dust particles?

Answer: Yes, the force of gravity acts on dust particles. According to Newton’s universal law of gravitation, the force of attraction... View Article

Dorji has a few bottles of soft drink in his restaurant. But, unfortunately, these are not labelled. He has to serve the drinks on the demand of customers. One customer wants acidic drink, another wants basic and third one wants neutral drink. How will Dorji decide which drink is to be served to whom?

Answer: Dorji can detect a few drops of soft drink bottles; the acidic solution is sour, the basic solution is bitter, and the neutral solution... View Article

Draw Fig.16.6 showing the position of the plane mirror. Also, label the angle of incidence and angle of reflection on it.

Answer: The angle of incidence is equal to the reflected angle through the law of reflection. The angle of incidence and the angle of reflection... View Article

During dry weather, clothes made of synthetic fibre often stick to the skin. Which type of force is responsible for this phenomenon?

Answer: The electrostatic force begins to work between the synthetic fibre cloth and the skin. The electrostatic force is an attractive and... View Article

During dry weather, while combing hair, sometimes we experience hair flying apart. The force responsible for this is (a) force of gravity. (b) electrostatic force. (c) the force of friction. (d) magnetic force.

Answer: (b) electrostatic force. When electric current passes through the coil, it acts as an electromagnet, producing magnetic force. The... View Article

During the construction of a building, the lightning conductor was left hanging in the air by mistake. Would the lightning conductor be still effective? Explain.

Answer: If a lightning conductor is left hanging in the air, it will not work since it must be connected to the ground with any metal (copper)... View Article

Electric current is to be passed from one body to another. For this purpose, the two bodies must be joined by (a) cotton thread (b) plastic string (c) copper wire (d) rubber band

Answer: (c) copper wire Copper is a good conductor of electricity. Plastic, rubber and cotton are bad conductors of electricity. The metals are... View Article

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