how can we find out the focus of a lens
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Answer:
It is the point where refracted rays actually meet or appear to meet .
We can find it by locating the point where rays converge . ...
Explanation:
Lens : The two curved surfaces bounded at certain angle .
We come across two types of lenses :
Concave lens.
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The Indian Blackbuck (Antilope cervicapra), is one of the three species of antelopes found in Odisha. The other two are Nilgai (Boselaphus tragocamelus) and the Chowsingha (Tetracercus quadricornis). All the three are even-toed (Artiodactyla) Bovids. Blackbuck is considered to be the fastest animal in the world next to Cheetah. There has been a dissolute decline in the population of Blackbucks throughout the country due to poaching and habitat loss
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