Question

mene to brainly Valo ko bol diya he ke meri I'd block karde

Unka message bhi aya he ki 1 gante me block ho jayegi ​

Answer 1

Answer:

the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.

the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front.

the fact or phenomenon of light, radio waves, etc. being deflected in passing obliquely through the interface between one medium and another or through a medium of varying density.change in direction of propagation of any wave as a result of its travelling at different speeds at different points along the wave front.measurement of the focusing characteristics of an eye or eyes.