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 State Board
Class 8
Sound
Textbook questions
6.
Match the following I
Exercise condition:
4
m.
Column - I
Column - II
Ultrasonics
Frequency below
20
Hz
Needs material medium
330
m/s
Frequency more than
20000
Hz
Speed of sound in air
330
m/s
Frequency more than
20000
Hz
Needs material medium
Frequency below
20
Hz
Infrasonics
Needs material medium
330
m/s
Frequency below
20
Hz
Frequency more than
20000
Hz
Sound propagation
Needs material medium
330
m/s
Frequency below
20
Hz
Frequency more than
20000
Hz
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!