why light travel in straight line
Answers
Answer:
Light travels in a straight line because the diffraction effect is least due to the small wavelength of light. So the small wavelength of light produces negligible diffraction and therefore light travels along a straight line.
Answer:
Light travels in a straight line because the diffraction effect is least due to the small wavelength of light. So the small wavelength of light produces negligible diffraction and therefore light travels along a straight line
Explanation:
But all the time light don't travel in straight line because of refraction. when light enter one medium to another medium it's direction gets changed.
If you cut a small quadrilateral or triangular hole in paper and if you cast the shadow of the paper on a plane you the shadow will be like a circle.