A sound wave has a frequency of 3 KHz and wavelength 20 cm. How much – McqOptions

MCQOPTIONS

1.	A sound wave has a frequency of 3 KHz and wavelength 20 cm. How much will it take to travel 2 km?
A.	4.2 s
B.	3.33 s
C.	3.9 s
D.	4.65 s
Answer» C. 3.9 s

Discussion

No Comment Found

Related MCQs

Transformers only work with
A magnetic field must produce a/an
The magnetic field produced either by permanent magnets or by an electromagnet called a
In the transformer, if the secondary voltage is more than the primary voltage then it is called
The total force acting on the armature can be increased by increasing the
Such use of the computer through which we can write a letter, article, book, or prepare a report is called
A CD can store up to
A small magnetically sensitive, flexible plastic wafer housed in a plastic case is called
A rigid, magnetically sensitive disk that spins rapidly and continuously inside the computer housing is termed as
As per Michael Faraday, if the forefinger points the direction of the magnetic field, the middle finger in the direction of the current, then the thumb would indicate the direction of

Related Topics

Biology

Chemistry

Math

Physics

Recent Visits