Q: 9 (NDA-I/2015)

Ultrasonic waves of frequency 3 * 105 Hz are passed through a medium where speed of sound is 10 times that in air (Speed of sound in air is 300 m/s). The wavelength of this wave in that medium will be of the order of
question_subject: 
Maths
stats: 
0,24,312,96,88,88,64