Vol. 25. No. 1 (January - March 2008)

Editorial

03

Effect of electric field and potential on the Germination of gram and pea seeds

     Alok Chattaraj, Sandipan Mallik, Tapati Das and A. Ghorai 05

Investigation of reflection and transmission properties using a laser source and a rectangular glass slab

     Maitraiyee Mitra and A. Ghorai 11

Observing diffraction pattern from a 2d grating

 
     Virendrakumar Gautam, M. N. Bapat and M. G. Tarnekar 17

Extraction of wavelength information from noise in Lloyd's mirror interference fringes

 
     Girish Sharma, Shuvan Prashant, Nanda Ventkatgopal, O. S. K. Sastri, Rajkumar Jain, S. Nanjundan, K. S. Umesh 25

Solving Physical Problems through dimensional analysis

     Debnarayan Jana 35

Thermodynamics of quantum harmonic oscillators

     K. M. Udayanandan and P. Sethumadhavan 47
Physics Through Teaching Laboratory - XI
Laboratory experiment with tungsten filament electric lamp
     D. A. Desai and C. B. Ajit 55
Physics Through Problem Solving - XII
Satellite and Spacecrafts II
     P. S. Joag 63
Comments
On the invariance of speed of light
     D. A. Desai 71