Answer: If the water is distilled, it will not conduct electricity without the addition of lemon juice, and no current will flow across the... View Article
Answer: a) Three mirrors should he use to see the objects. b) c) Mirrors should be placed at an angle of 45° with respect to the incident... View Article
Answer: Sound travels at a significantly slower rate than light. Sound travels at a speed of around 330 metres per second in air. Light will... View Article
Answer: The impression of an image does not fade from our retina instantaneously but rather remains for 1/16th of a second. If we move our hands... View Article
Answer: (d) according to the disposal guidelines of the local authority. Waste is defined as unwanted and unusable materials and is regarded as... View Article
Answer: -4y The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to calculate the... View Article
Answer: -2a2b4 The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to calculate... View Article
Answer: 1/2 x3 The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to calculate... View Article
Answer: 2/3 x2y The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to calculate... View Article
Answer: 6pqr The four important terms used in the division operation are dividend, divisor, quotient and remainder. The formula to calculate the... View Article
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Answer: Recycling waste product is very important as it helps in processing waste or used products into useful or new products. Recycling also... View Article
Answer: Changes in which new substances are formed are called chemical changes. A substance is said to undergo a chemical change when the... View Article
Answer: Changes in which only physical properties of a substance change are called physical changes. A substance is said to undergo a physical... View Article
Answer: A polynomial is an algebraic expression in which the exponent on any variable is a whole number. Polynomial’s degree is the highest... View Article
Answer: (A) 0° sin 2A = 2 sin A is true when A = 0° To find the value of A, substitute the degree given in the options one by one As sin... View Article