Advertisements
Advertisements
Question
A person 1 m in front of a plane mirror seems to be ______ m away from his image.
Advertisements
Solution
A person 1 m in front of a plane mirror seems to be 2 m away from his image.
Explanation:
Object distance and image distance are the same as those of a plane mirror. The image of a person 1 m in front of a mirror is 1 m back to the mirror. Hence, the image is 1 + 1 = 2 m away from the person.
RELATED QUESTIONS
Draw a diagram showing the reflection of a light ray from a plane mirror. Label on it the incident ray, the reflected ray, the normal, the angle of incidence i and the angle of reflection r.
State the two laws of reflection of light.
According to the law of reflection :
State the direction of incident ray which after reflection from a spherical mirror retraces its path. Give a reason to your answer.
A student does the experiment on tracing the path of a ray of light passing through a rectangular glass slab for different angles of incidence. He can get a correct measure of the angle of incidence and the angle of emergence by following the labelling indicated in figure.
The laws of reflection hold good for
The incident angle of a ray of light is 30°. The angle between the incident ray and the reflected ray is ______.
The incident ray, the ______ ray, and the ______ at the point of incidence, all lie in the same plane.
We can see things around us only when the light reflected by them reaches our eyes.
If all objects around us were to reflect light in a regular way, what problem might we face?
