A student performs the melde's experiment in parallel and perpendicular position and draws the conclusion .
A) number of loops in perpendicular position is equal to twice the number of loops in parallel position
B) the wavelength in perpendicular position is equal to twice the wave length of the wave in parallel position
C) of the period of the wave on the string in parallel position
D) the ratio of frequency of vibrating string in parallel to perpendicular position is 2:1
The correct statement is / are

Options

A. A and D
B. A and C
C. A, B, C and D
D. A, C and D

Answer

B