Consider the following statements: 1. A widely used musical scale called diatonic scale has seven frequencies. 2. The frequency of the note Sa is 256 Hz and that of Ni is 512 Hz. Which of the statements given above is/are correct?

The correct answer is A because of the following reasons: Statement 1 is correct. The diatonic scale is a seven note musical scale, commonly known as Sa Re Ga Ma Pa Dha Ni in Indian classical music or Do Re Mi Fa Sol La Ti in Western music. These seven notes repeat at the eighth note, which is called the octave. Statement 2 is incorrect. In a standard musical scale, if the frequency of the first note Sa is 256 Hz, the frequency of the note at the next octave higher Sa would be 512 Hz, which is double the initial frequency. The note Ni is the seventh note and has a frequency slightly lower than the octave. Therefore, Ni cannot be 512 Hz if Sa is 256 Hz.