Human eye

Far sightedness is

• Myopia

• Hypermetropia

• Presbyopia

• Cataract

Near sightedness is

• Myopia

• Hypermetropia

• Presbiopia

• Cataract

Ciliary muscles are......when we see near by objects

• Contracted

• Relaxed

• No effect

• Weakened

Near point of normal eye is

• Infinity

• 80cm

• 10cm

• 25cm

Correction to myopia is done by

• Concave lens

• Convex lens

• Bifocal lens

• Plane lens

Correction to hypermetropia is done by

• Concave lens

• Convex lens

• Bifocal lens

• Plain lens

Tags

NGSS.MS-PS4-2

Cause of myopia is

• Elongation of eyeball

• Excessive curvature of eye lens

• Both

• None

Cause of hypermetropia is

• Shortening of eye ball

• Less curvature of eye lens

• Both

• None

Dispersion of white light is

• Scattering of light

• Bending of light

• Reflection of light

• Splitting of white light in 7 colours

Which component of light is responsible for heating effect

• Red

• Infra red

• Violet

• Ultra violet

Tags

NGSS.MS-PS4-2