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Question: If a sound source moves towards a stationary observer, what happens to the frequency heard..
Question: What is the frequency of a sound wave with a wavelength of 2 meters traveling at 340 m/s?O..
Question: Which of the following materials has the highest speed of sound?Options: AirWaterSteelWood..
Question: Which of the following is a key difference between simple and compound interest?Options: S..
Question: If a sum of money is invested at a compound interest rate of 6% per annum, how much will i..
Question: A loan of Rs. 2000 is taken at a simple interest rate of 8% per annum. How much interest w..
Question: If the amount after 2 years at compound interest is Rs. 1210 and the principal is Rs. 1000..
Question: Which of the following statements is true regarding simple and compound interest?Options: ..
Question: If a sum of Rs. 1200 is invested at a compound interest rate of 5% per annum, what will be..
Question: A certain amount of money is invested at a compound interest rate of 10% per annum. How lo..
Question: If the principal is Rs. 5000 and the rate of interest is 12% per annum, what will be the t..
Question: A sum of money invested at compound interest grows to Rs. 8000 in 2 years and Rs. 9600 in ..
Question: If a sum of money doubles in 5 years at simple interest, what is the rate of interest per ..
Question: A ball is thrown upwards with a speed of 15 m/s. How long will it take to reach the highes..
Question: If a vehicle travels 100 km in 2 hours and then 50 km in 1 hour, what is its average speed..
Question: A person walks 4 km at a speed of 4 km/h and then runs 3 km at a speed of 6 km/h. What is ..
Question: A boat can travel at a speed of 10 km/h in still water. If it goes downstream, its speed i..
Question: A cyclist covers a distance of 30 km at a speed of 15 km/h. How long does it take to cover..
Question: What is the primary use of the \'dp\' array in dynamic programming?Options: To store input..
Question: Which dynamic programming technique builds solutions from the ground up?Options: Top-downB..
Question: A 10 kg object is lifted to a height of 5 m. What is the potential energy gained? (Take g ..
Question: What is the work done when a force of 25 N moves an object 8 m in the direction of the for..
Question: A 5 kg object is dropped from a height of 10 m. What is its potential energy at the top? (..
Question: If a force of 15 N is applied at an angle of 60° to the horizontal and moves an object 4 m..
Question: An object of mass 4 kg is moving with a velocity of 3 m/s. What is its kinetic energy? (20..
Question: If a 2 kg object is lifted to a height of 3 m, what is the potential energy gained by the ..
Question: What is the total current in a parallel circuit with three branches carrying 2 A, 3 A, and..
Question: If the frequency of an AC circuit is doubled, what happens to the inductive reactance?Opti..
Question: In a magnetic field, the direction of the magnetic force on a charged particle is given by..
Question: What is the formula for the capacitance of a parallel plate capacitor?Options: C = εA/dC =..
