A train moves towards a stationery observer with speed 34 m/s. The train sounds a whistle and its frequency registered by the observer is 
. If the speed of the train is reduced to 17 m/s, the frequency registered is 
.if speed of sound is 340 m/s, then the ratio 
is :
(a)
18/17
(b)
19/18
(c)
20/19
(d)
21/20
A train moves towards a stationery observer with speed 34 m/s. The train sounds a whistle and its frequency registered by the observer is . If the speed of the train is reduced to 17 m/s, the frequency registered is .if speed of sound is 340 m/s, then the ratio is :
(a)
18/17
(b)
19/18
(c)
20/19
(d)
21/20
Question ID - 50241 | SaraNextGen Top Answer
A train moves towards a stationery observer with speed 34 m/s. The train sounds a whistle and its frequency registered by the observer is . If the speed of the train is reduced to 17 m/s, the frequency registered is .if speed of sound is 340 m/s, then the ratio is :
(a)
18/17
(b)
19/18
(c)
20/19
(d)
21/20
|
A train moves towards a stationery observer with speed 34 m/s. The train sounds a whistle and its frequency registered by the observer is |
|||
|
(a) |
18/17 |
(b) |
19/18 |
|
(c) |
20/19 |
(d) |
21/20 |
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