Light

We can see objects because

• They emit their light

• They reflect liight

• They refract light

• Of our eyes

Which is not a part of ray digram?

• Reflected ray

• Angle of incidence

• Angle of normal

• normal

Laws of reflection doesnt apply on diffused reflection

• True

• False

Reflection from a marble floor will cause

• Diffused reflection

• Regular reflection

• Both can form

• It cant reflect light

If two plane mirrors are placed at an angle of 60 degrees.How many images can be formed?

• Infinite

• 6

• 2

• 5

Virtual image,lateral inversion,errect

• Plane mirror

• Concave mirror

• Convex mirror

• None of these

If the object is 3.4 m away from the mirror. How much distance the object needs to move backward , so that the distance between object and image is 10.8 ?

• 3.4 m

• 2m

• 2.5 m

• 3m

Splitting of light into its constituent colours is called

• Refraction

• Diversion

• Reflection

• Dispersion

Cones are sensitive to ____ while rod cells are sensitive to____

• Bright light,dim light

• Dim light,bright light

• both dim light

• both bright light

Select the correct match

• iris-controls the size if pupil and gives colour to eyes

• cornea-controls the entrance of light

• optic nerve-transfer oxygen

• All of these are correct match