which one travels faster?
sound
light
Sound does not need a medium to transfer sound waves.
luminous objects does not emit light on its own.
luminous objects
moon
sun
lamp
glow-worms
light travels in a straight line
which one is converging light rays?
solar eclipse
sun moves between the moon and earth
earth moves between the sun and the moon
moon moves between the sun and the earth
umbra region
region where partial shadow is experienced.
region where there is a total shadow.
the amount and direction of reflected light depends on the surface on which it strikes.
the reflection of light
the reflection of light is the bouncing of light off a surface.
the reflection of light is the bending of light as it travels from one medium to another
which one is concave mirror?
angle of incidence does not equivalent to angle of reflection.