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Byju's Answer
Standard IX
Physics
Applications of Reflection of Sound
A #160;gun ...
Question
A
g
u
n
i
s
f
i
r
e
d
f
r
o
m
a
d
i
s
tan
c
e
o
f
1
.
2
k
m
f
r
o
m
a
h
i
l
l
.
T
h
e
e
c
h
o
o
f
t
h
e
s
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n
d
i
s
h
e
a
r
d
a
t
t
h
e
s
a
m
e
p
l
a
c
e
a
f
t
e
r
7
.
1
s
e
c
o
n
d
s
.
C
a
l
c
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l
a
t
e
t
h
e
s
p
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d
o
f
s
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d
.
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Solution
Dear Student
Here total distance traveled by sound = 1.2 km = 2 x 1200m
time = 7.1 sec
speed of sound = D / T
= 2400/ 7.1 = 338.02 m/s
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