An individual with normal vision can read even the smallest letter from a distance of:
6m
8m
10m
15m
We can see objects only if there is:
sound
darkness
light
smell
__________is an equipment to help the blind.
White cane
Ear phone
Wheel chair
Stretcher
Blind people use the ___________alphabet for reading.
English
Braille
Symbol
Arabic
Work of _______ gives the correct and same size of the object.
Lens
Eye
Brain
Retina
Loud speaker - Sound pollution; Plastic - ?
Air pollution
Sound pollution
Water pollution
Soil pollution
Pick out the odd one .
White Cane
Wheel Chair
Crutches
The condition that affects vision.
The image of the object is formed on the _____________of our eyes.
Cornea
None of these