A man standing at a certain distance blows a horn towards a big wall. He hears the echo after 2s, if the velocity of sound in air is 340 m/s, then the

Question

A man standing at a certain distance blows a horn towards a big wall. He hears the echo after 2s, if the velocity of sound in air is 340 m/s, then the

A man standing at a certain distance blows a horn towards a big wall. He hears the echo after 2s, if the velocity of sound in air is 340 m/s, then the distance between the man and the wall is
A. 850 m
B. 340 m
C. 170 m
D. 680 m

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

Related Questions

The speed of sound in air and water is 340 m/s and 1420 m/s respectively. If sound waves have a wavelength of 2m in air, then the frequency of the sam

2 Answers 5 Views

A man standing unsymmetrical position between two mountains and fires a gun. He hears the first echo after 1.5 s and the second echo after 2.5 s. If t

2 Answers 4 Views

An engine approaches a hill with a constant speed. When it is at a distance of 0.9 km, it blows a whistle whose echo is heard by the driver after 5 se

2 Answers 6 Views

A person in front of a hill at a distance 337.5 m fires a bullet. If he hears an echo after 2.25 s, then the velocity of sound will be

2 Answers 5 Views

A man is driving a vechicle at 36 km/hr on a straight road towards a hill. He sounds the horn and hears its echo after 4s At what distance from the hi

2 Answers 12 Views

A man standing between two parallel cliffs fires a gun. If he hears the first echo after 2s and the next after 5s, the distance between the two cliffs

2 Answers 6 Views

A road runs midway between two parallel rows of buildings. A motorist moving with a speed of 36 km/hr sounds the horn. He hears the echo one second af

2 Answers 6 Views

A soldier fires a bullet towards a fort-wall and hears the first echo after 2s. He moves a distance of 85m towards the wall, fires a bullet and hears

2 Answers 5 Views

A scooterist moving with a velocity of 36 kmph towards a fort wall and blows a horn. If he hears the echo after 3s, then the distance at which horn is

2 Answers 4 Views

A man is driving a car at a speed of 72 kmph towards a hill. He sounds the horn and hears its echo after 2 s. At what distance from the hill the horn

2 Answers 4 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Salim Ahmed Kawsar

Correct Answer - B
`2 x = vt`
`:. X = (vt)/(2) = (340 xx 2)/(2) = 340 m`

4 views Answered 2023-02-05 15:29