Advertisements
Advertisements
Question
When a ray of light travels normal to the given surface, then the angle of refraction is ______.
Options
180°
0°
90°
45°
Advertisements
Solution
When a ray of light travels normal to the given surface, then the angle of refraction is 0°.
Explanation:
Traveling parallel to the normal is the refracted ray. Therefore, the angle of refraction is zero.
APPEARS IN
RELATED QUESTIONS
Where is the image when you look at something in a mirror?
The image in a plane mirror is virtual and laterally inverted. What does this statement mean?
Name the phenomenon due to which a swimming pool appears less deep than it really is.
What is meant by the ‘angle of incidence’ for a ray of light?
- With the help of a diagram, show how when light falls obliquely on the side of a rectangular glass slab, the emergent ray is parallel to the incident ray.
- Show the lateral displacement of the ray on the diagram.
Water is optically denser than glass.
The phenomenon of change in the direction of light when it passes from one transparent medium to another is called ___________.
A real image is formed by the light rays after reflection or refraction when they:
- actually meet or intersect with each other.
- actually converge at a point.
- appear to meet when they are produced in the backward direction.
- appear to diverge from a point.
Which of the above statements are correct?
A pencil when dipped in water in a glass tumbler appears to be bent at the interface of air and water. Will the pencil appear to be bent to the same extent, if instead of water we use liquids like, kerosene or turpentine. Support your answer with reason.
Which is optically denser out of the two medium M1& M2 having the refractive indices = 1.71 and 1.36 respectively?
