Advertisements
Advertisements
प्रश्न
When a ray of light travels normal to the given surface, then the angle of refraction is ______.
विकल्प
180°
0°
90°
45°
Advertisements
उत्तर
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
संबंधित प्रश्न
A ray of light strikes a plane mirror such that its angle of incidence is 30°. What angle does the reflected ray make with the mirror surface?
What is lateral inversion? Explain by giving a suitable example.
The image in a plane mirror is virtual and laterally inverted. What does this statement mean?
A man sits in an optician's chair looking into plane mirror which is 2 m away from him and views the image of a chart which faces the mirror and is 50 cm behind his head. How far away from his eyes does the chart appear to be?
State two effects caused by the refraction of light.
What is the cause of refraction of light when it passes from one medium to another?
The refractive index of four substances A, B, C, and D are 1.31, 1.43, 1.33, 2.4 respectively. The speed of light is maximum in
If a beam of red light and a beam of violet light are incident at the same angle on the inclined surface of a prism from air medium and produce angles of refraction r and v respectively, which of the following is 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.
A water tank appears shallower when it is viewed from the top due to refraction.
