The point, where all the reflected rays meet after reflecting from a cocave mirror is called
. Pole
Optic centre
Focus
Centre of curvature
Angle of incidence is equal to the angle of refraction
Always
Sometimes
Under special conditions
Never
The objects that can emit light and can act as source of light are called
Transparent Object
Opaque Object
Luminous objects
Non Luminous Objects
Which of the following properties of light help us to see objects
Refraction
Reflection
Diffraction
Interference
The image formed by a plane mirror is
Real
Virtual
Inverted
No image formation
Substances which allow light partially through them are called
Transparent Objects
Translucent Objects
Which of the following show regular reflection?
Rock
Wood
Glass
Wall
According to the law of reflection
Angle of incidence > Angle of Reflection
Angle of incidence < Angle of Reflection
Angle of incidence = Angle of Reflection
No relation between Angle of incidence and Angle of Reflection
The angle of incidence of a ray if the reflected ray is at an angle of 90° to the incident ray?
500
600
900
1800
Velocity of light is least in
Water
Air
Vacuum
