PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo
1. List any five properties of light.
 
a. Light is a form of .
  
b. Light always travels along a .
  
c. Light  any medium for its propagation.
  
d.  can even travel through vacuum.
 
2. Explain the rules for obtaining images formed by a convex lens with the help of ray diagram.
 
a. When a ray of light strikes the concave lens obliquely at its optical centre, it continues to follow its path .
 
 b. When rays parallel to the principal axis strikes a convex or concave lens, the refracted rays are converged to (convex lens) or appear to diverge from (concave lens) the .
 
c. When a ray passing through (convex lens) or directed towards (concave lens) the principal focus strikes a convex or concave lens, the refracted ray will be parallel to the .
 
d. When a ray of light strikes the convex lens obliquely at its optical centre, it continues to follow its path .