Question

 A concave lens has focal length of 20 cm . At what distance should the object from the lens be placed so that it forms an image at 25 cm from the lens? *​

Answer 1

Answer:

Adult great Indian bustards have few natural enemies, but they display considerable agitation around certain predatory birds, such as eagles and Egyptian vultures (Neophron percnopterus). The only animals that have been observed to attack them are gray wolves (Canis lupus).