A laser beam is split into two rays by a beam splitter. The two are redirexted through a series of mirrors and made to interfere. The interference pattern is observed an a detector. Which statement is true for the pattern made by the two laser beams?

it is a

explanation:

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.

the answers are a and c