Advertisements
Advertisements
Question
Higher Order Thinking Skills.
Light ray emerges from water into air. Draw a ray diagram indicating the change in its path in water.
Advertisements
Solution
When a ray of light travels from dense medium to rarer medium [from water medium to air medium], light ray moves away from the normal.
∴ Angle of incidence < Angle of refraction.
APPEARS IN
RELATED QUESTIONS
State the speed of light in (a) air, (b) glass.
State whether light slows down or speeds up in the following cases :
Light going from air to glass.
When light travels from a denser to a rarer medium, its speed ______.
A light ray suffers reflection and refraction at the boundary in passing from air to water. Draw a neat labelled ray diagram to show it.
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?
Higher Order Thinking Skill.
What do you conclude about the speed of light in diamond. if the refractive index of diamond is 2.41?
Define opaque material.
The speed of light decreases in a denser medium, light bends towards the normal.
Light is one of the slowest traveling energy with a speed of 3 × 10-8ms-1
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.
