Login
Login
Sign up
Start
Mathmania
Teacher tutorials
TOP
Subjects
Bridge Course
Testworks
Subject updates
Ya+
News
Send feedback
See more
Contacts
About Us
Terms and Conditions
Privacy Policy
PDF chapter test
TRY NOW
Subjects
Science CBSE
Class 9
Sound
Textbook based HOTS II
1.
Multiple choice question I
Exercise condition:
2
m.
The wave length of wave is \(1500\ m\) and it's frequency is \(20\ hz\). Calculate the speed of this wave.
\(30\ ms^{-1}\)
\(300\ ms^{-1}\)
\(3000\ ms^{-1}\)
\(30000\ ms^{-1}\)
Login
or
Fast registration
Previous topic
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!