Advertisements
Advertisements
Question
When a ray of light strikes a plane mirror at an angle of 150 with the mirror, what will be the angle through which the ray will deviate? Illustrate with a ray diagram in the following figure.
Advertisements
Solution
Reflection obeys the following two laws.
a. The incident ray, the reflected ray, and the normal at the point of incidence, all lie in the same plane.
b. The angle of incidence and the angle of reflection are always equal. According to these two laws, this ray will deviate like this:
APPEARS IN
RELATED QUESTIONS
David is observing his image in a plane mirror. The distance between the mirror and his image is 4 m. If he moves 1 m towards the mirror, then the distance between David and his image will be ______.
You are standing at a distance of 2 meters from a plane mirror.
What is the distance between you and your image?
Define Regular reflection.
Draw a neat diagram of reflecting periscope.
An object 3 cm high produces a real image 4.5 cm high when placed at a distance of 20 cm from a concave mirror. Calculate:
- the position of image
- focal length of the concave mirror.
A converging mirror, forms three times magnified virtual image when an object is placed at a distance of 8 cm from it. Calculate:
- the position of the image
- the focal length of the mirror.
Copy the figure. By taking two rays from point A, show the formation of image. State four characteristics of the image.
The light ray gets _______ when it falls on any polished surface.
Higher Order Thinking Skills.
When a ray of light passes from air into glass, is the angle of refraction greater than or less than the angle of incidence?
Beams of light are incident through the holes A and B and emerge out of box through the holes C and D respectively as shown in the Figure Which of the following could be inside the box?
