A 14 years old boy cannot read question written on the black-board lying 5 m away from him. Name the eye defect he is suffering from.

A 14 years old boy cannot read question written on the black-board lying 5 m away from him. Show with the help of a labelled diagram as to how this defect can be corrected.

A person can not see clearly objects beyond a distance of 1.2 m.Name the defect of vision he is suffering from.What would be the power of correcting lens used to restore proper vision?

A young boy when brought a pet dog home started to complant of watery eyes and running nose. The symtomes disappeared when the boy was kept away from the pet. Name the type of antibody and chemicals responsible for such a response in boy.

A motor car is fitted with a convex driving mirror of focal length 20 cm. A second motor car 2 m board and 1.6 m high is 6 m away from the first car. If the second car is overtaking at a relative speed of 14ms^-1 , how fast will the image be moving and in what direction?

A kite is movgin horizontally at the height of 151.5 metres. If the speed of the kite is 10m/s, how fast is the string being let out, when the kite is 250 m away from the key who is flying the kite ? The height of the boy is 1.5 m.

A person wear spectacles of power-2.3 D Name the defect of vision he is suffering from.Draw the ray diagram for: The defective eye

A young boy when brought a pet dog home started to complant of watery eyes and running nose. The symtomes disappeared when the boy was kept away from the pet. Mention the name of any drug that could be given to the boy for immediate relief fromo such a response.