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Which among the following is true for a plane mirror?
- a)Angle of incidence is the angle between incident ray and the mirror surface.
- b)Angle of incidence is the angle between the reflected ray and the incident ray.
- c)Angle of incidence is not always equal to angle of reflection.
- d)Angle of incidence is always equal to angle of reflection.
Correct answer is option 'D'. Can you explain this answer?
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Which among the following is true for a plane mirror?a)Angle of incide...
The normal line divides the angle between the incident ray and the reflected ray into two equal angles. The angle between the incident ray and the normal is known as the angle of incidence. The angle between the reflected ray and the normal is known as the angle of reflection.
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Which among the following is true for a plane mirror?a)Angle of incide...
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Which among the following is true for a plane mirror?a)Angle of incide...
Angle of incidence is always equal to angle of reflection.
Explanation:
When a light ray strikes a plane mirror, it undergoes reflection. The angle of incidence is defined as the angle between the incident ray and the normal to the mirror surface at the point of incidence. The angle of reflection is defined as the angle between the reflected ray and the normal to the mirror surface at the point of incidence.
Law of Reflection:
The law of reflection states that the angle of incidence is always equal to the angle of reflection. This means that when a light ray strikes a plane mirror, the angle at which it approaches the mirror (angle of incidence) is equal to the angle at which it leaves the mirror (angle of reflection).
Proof:
To understand this, let's consider a light ray striking a plane mirror at an angle. We can observe the following:
1. Incident Ray: The incident ray is the light ray that approaches the mirror and strikes it.
2. Normal: The normal is a line perpendicular to the mirror surface at the point of incidence.
3. Angle of Incidence: The angle of incidence is the angle between the incident ray and the normal.
4. Reflected Ray: The reflected ray is the light ray that bounces off the mirror after reflection.
5. Angle of Reflection: The angle of reflection is the angle between the reflected ray and the normal.
When the light ray strikes the mirror, it follows the law of reflection. According to this law, the angle of incidence is always equal to the angle of reflection. Mathematically, we can represent this as:
Angle of Incidence = Angle of Reflection
This holds true for all angles of incidence, whether the light ray strikes the mirror at a small angle or a large angle.
Conclusion:
In conclusion, the correct statement for a plane mirror is that the angle of incidence is always equal to the angle of reflection. This is a fundamental principle of reflection and is consistent with the behavior of light rays when they interact with plane mirrors.
Explanation:
When a light ray strikes a plane mirror, it undergoes reflection. The angle of incidence is defined as the angle between the incident ray and the normal to the mirror surface at the point of incidence. The angle of reflection is defined as the angle between the reflected ray and the normal to the mirror surface at the point of incidence.
Law of Reflection:
The law of reflection states that the angle of incidence is always equal to the angle of reflection. This means that when a light ray strikes a plane mirror, the angle at which it approaches the mirror (angle of incidence) is equal to the angle at which it leaves the mirror (angle of reflection).
Proof:
To understand this, let's consider a light ray striking a plane mirror at an angle. We can observe the following:
1. Incident Ray: The incident ray is the light ray that approaches the mirror and strikes it.
2. Normal: The normal is a line perpendicular to the mirror surface at the point of incidence.
3. Angle of Incidence: The angle of incidence is the angle between the incident ray and the normal.
4. Reflected Ray: The reflected ray is the light ray that bounces off the mirror after reflection.
5. Angle of Reflection: The angle of reflection is the angle between the reflected ray and the normal.
When the light ray strikes the mirror, it follows the law of reflection. According to this law, the angle of incidence is always equal to the angle of reflection. Mathematically, we can represent this as:
Angle of Incidence = Angle of Reflection
This holds true for all angles of incidence, whether the light ray strikes the mirror at a small angle or a large angle.
Conclusion:
In conclusion, the correct statement for a plane mirror is that the angle of incidence is always equal to the angle of reflection. This is a fundamental principle of reflection and is consistent with the behavior of light rays when they interact with plane mirrors.
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Which among the following is true for a plane mirror?a)Angle of incidence is the angle between incident ray and the mirror surface.b)Angle of incidence is the angle between the reflected ray and the incident ray.c)Angle of incidence is not always equal to angle of reflection.d)Angle of incidence is always equal to angle of reflection.Correct answer is option 'D'. Can you explain this answer?
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