Advertisements
Advertisements
प्रश्न
When light travels from a denser to a rarer medium, its speed ______.
Advertisements
उत्तर
When light travels from a denser to a rarer medium, its speed increases.
APPEARS IN
संबंधित प्रश्न
A light ray passes from water to
- air, and
- glass.
In each case, state how does the speed of light change.
An obliquely incident light ray bends at the surface due to a change in speed when passing from one medium to another. The ray does not bend when it is incident normally. Will the ray have a different speed in the other medium?
Compare the speeds of light of wavelength 4000 Å (i.e. violet light) and 8000 Å (i.e. red light) in vacuum.
The speed of light is maximum in ______.
What is the speed of light in vacuum?
Higher Order Thinking Skill.
What do you conclude about the speed of light in diamond. if the refractive index of diamond is 2.41?
Materials that allow light to pass through completely are known as ______ material.
Materials that are not able to allow light to pass through, are called ______ material.
The speed of light decreases in a denser medium, light bends towards the normal.
Light travels a distance of '10x' units in time 't1' in vacuum and it travels a distance of 'x' units in time 't2' in a denser medium. Using this information answer the question that follows:
'Light covers a distance of '20x' units in time 't1' in diamond'. State true or false.
