Authors
G. Bhuvaneswari
Department of Physics, Muthayammal College of Arts and Science,, Rasipuram, India
Department of Physics, Sri Sarada College for Women,, Salem, India
L. Guru Prasad
Department of Science & Humanities, M. Kumaraswamy College of Engineering,, Karur, India
N. Prabhavathi
Department of Physics, Sri Sarada College for Women,, Salem, India