12.Two cars are moving on two perpendicular roads towards a crossing with uniform speed of 72km/h and 36km/h. if fast car blows horn of frequency 300Hz then the frequency of hornr heard by the driver of second car when line joining the cars make 45 degree angle with the roads will be.? speed of sound 330m/s

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Q. Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of 72 km/h and 36 km/h. If second car blows horn of frequency 280 Hz, then the frequency of horn heard by the driver of first car when the line joining the cars makes angle of

45^{\circ}

with the roads, will be (velocity of sound is 330 m/s)

Q. Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of 72 km/h and 36 km/h. If first car blows horn. of frequency 280 Hz, then the frequency of horn. heard by the driver of second car when line joining the car makes angle of 45 with the roads, will be

45^{\circ}

with the roads, will be (velocity of sound is 330 m/s)

Q. Two cars

A

and

B

are moving on two separate perpendicular roads approaching a crossing with uniform speed of

72 km/h

and

36 km/h

respectively. If the car

B

blows horn of frequency

280 Hz

then the frequency of horn heard by the driver of the car

A

, when the line joining the cars make an angle of

45^{\circ}

with the roads, will be,
[speed of sound

= 330 m/s

]

Two cars are moving on two perpendicular roads towards a crossing with uniform speeds of 72 km/hr and 36 km/hr. If first car blows horn of frequency 280 Hz, then the frequency of horn heard by the driver of second car when line joining the cars make $45^{\circ}$ angle with the roads; will be

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