National Council of Educational Research and Training (India <br/><br/>
P. S. S. C. physics: teacher's resource book and guide; part. 2/ 

 - New Delhi:  NCERT,  1964 
 - ii, II-17(1) 
<br/><br/><label>Source: </label> 45704-04-2018 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Physics-Guide Books