Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
332 views
in Physics by (86.5k points)
closed by
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 blown from the wall is (Velocity of sound in air = 340 m/s)
A. 525 m
B. 510 m
C. 1050 m
D. 500 m

1 Answer

0 votes
by (84.6k points)
selected by
 
Best answer
Correct Answer - A
`v = 36 xx (5)/(18) = 10 m//s`
`2x - Vt = Vt`
`2x = V t + Vt`
`= 340 xx 3 + 10 xx 3 = 1020 + 30`
`2x = 1050`
`x = (1050)/(2) = 525m`

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...