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The angle of incidence is always equal to the angle of reflection. 

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Important Questions on Light

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The laws of reflection hold true for:
HARD
A person has D cm wide face and his two eyes are separated by d cm. The minimum width (in cm) of a mirror required for the person to view his complete face is :
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Find the value of ir in the diagram.

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If a mirror forms erect image for objects placed between pole and focus, and it forms real-inverted image for object placed anywhere between focus and infinity, then the mirror is:

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What is reflection of light? Write law of reflection and draw labelled diagram.

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A ray of light is incident on a plane mirror and the angle of incidence is 25°. What is the angle of reflection?
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What is the angle of incidence of a ray of light if the reflected ray is at an angle of 90° to the incident ray?
MEDIUM

A beam of light falls on a plane mirror at an angle of 45°.

What is the angle of reflection?

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A beam of light falls on a plane mirror at an angle of 45°.

What is the angle of incidence?

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What is the angle equal to 90° minus the angle between the mirror and the incident ray called?
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How many reflected rays can there be for a given single incident ray falling on a plane mirror?
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A ray of light is incident normally (perpendicularly) on a plane mirror. Where will this ray of light go after reflection from the mirror?
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According to the laws of reflection,

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What is the angle of reflection when a ray of light is incident normally on a plane mirror?
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A ray of light striking the mirror is called a reflected ray.
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The incident ray, the normal at the point of incidence and the reflected ray all lie in the ________________.
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Define the angle of incidence.
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What is meant by 'reflected ray'?
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What is the angle of incidence when a ray of light is incident normally on a plane mirror?
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What is the full form of i and r? What is the relation between them?