A train standing a the outer signal of a railway station blows a whistle of frequency 400Hz in still air .
What is the frequency of the whistle for a platform observer when the train
(i) approaches the platform with a speed of `10ms^(-1)` ?
(ii) recedes from the platform with a speed of `10 ms^(-1)` ?

A train standing at the outer signal of a railway station blows a whistle of frequency 400Hz in still air. (i) What is the frequency of the whistle for a platform observer when the train (a) approaches the platform with a speed of 10 ms^(-1) . (b) recedes from the platform with a speed of 10ms^(-1) ? (ii) What is the speed of sound in each case? The speed of sound in still air can be taken as 340ms^(-1) .

A train standing at the outer signal of a railway station blows a whistle of frequency 400Hz in still air. (i) What is the frequency of the whistle for a platform observer when the train (a) approaches the platform with a speed of 10 ms^(-1) . (b) recedes from the platform with a speed of 10ms^(-1) ? (ii) What is the speed of sound in each case? The speed of sound in still air can be taken as 340ms^(-1) .

A train,standing at the outersignal of a railway station blows a whistle of frequency 400 Hz in still air. What is the frequency of the whistle for a platform observer when the train approaches the platform with a speed of 10 m s^-1

A train, standing at the outer signal of a railway station blows a whistle of frequency 400Hz in still air. (i) What is the frequency of the whistle for a platform observer when the train (a) approaches the platform with a speed of 10ms^(-1) , (b) receeds from the platform with a speed of 10ms^(-1) ? (ii) What is the speed of sound in each case ? The speed of sound in still air can be taken as 340ms^(-1)

A train, standing at the outer signal of a railway station blows a whistle of frequency 400Hz in still air. (i) What is the frequency of the whistle for a platform observer when the train (a) approaches the platform with a speed of 10ms^(-1) , (b) receds fromk the platform with a speed of 10ms^(-1) ? (ii) What is the speed of sound in each case ? The speed of sound in still air can be taken as 340ms^(-1)

A train , standing at the outer signal of a railway station blows a whistle of frequency 400 Hz in still air, (i) What is thefrequency of the whistle for a platform observer when the train (a) approaches the platform with a speed of 10ms^(-1) , (b) recedes from the platform with a speed of 10 ms^(-1) ? (ii) What is the speed of sound in still air can be taken as 340 ms^(-1) .

A train standing at the outer signal of a railway station, blows a whistle of frequency 400 Hz in stil air. (i) What is the frequency of the whistle for a platform observer when the train (a) approaches the platform with a speed of 10 ms^(-1) . (b) recedes from the platform with a speed of 10 ms ? What is the speed of sound in each case? (V=340ms^(-1)) .