Vibrations and waves questions | form five Physics
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(5724) Question Category: Mathematical Calculation A source of sound emits waves of frequency f, and is moving with a speed of u, towards the listener and away from the listener. Derive an expression for apparent frequency f1 of sound in each case if the velocity of sound wave in air is V. Answer / Solution UNSOLVED |
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(5725) Question Category: Mathematical Calculation A whistle emitting a sound of frequency 440Hz is tied to a string of 1.5m length and rotated with an angular velocity of 20rads1 in the horizontal plane. Calculate the range of frequencies heard by an observer stationed at a large distance. Answer / Solution UNSOLVED |
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(5726) Question Category: Mathematical Calculation A police on duty detects a drop of 10% in the pitch of the horn of a motor car as it crosses him. Calculate the speed of the car. Answer / Solution UNSOLVED |
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(5727) Question Category: Short answers What is meant by statement that light is plane polarized. Answer / Solution UNSOLVED |
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(5728) Question Category: Short answers State Brewster`s law. Answer / Solution UNSOLVED |
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