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A 26 cm object is 18 cm in front of a plane mirror. A ray of light strikes the object and is reflected off the mirror at a 42-degree angle.

What is the angle of reflection?


_______ degrees

What type of image is formed?

_________

What is the size of the image?


___________cm

Respuesta :

The angle of reflection is the angle between the reflected ray and the normal.
In this case the angle of reflection is 42 degrees

Characteristics of images formed in a plane mirror include
The image is upright
The image is virtual
the image is the same size as the object
The image is at the same distance from the mirror as the object
The image is formed behind the mirror

A plane mirror forms an image which is the same size as the object
Therefore since the object is 26 cm long , the image would still be 26 cm.
onyebuchinnaji

The angle of the reflection of the plane mirror is 42⁰.

The image formed is upright and same distance from the mirror as the object.

The size of the image formed is 26 cm.

The given parameters:

  • height of the object, h = 26 cm
  • distance of the object, d = 18 cm
  • angle of reflection, r = 42⁰

The angle of the reflection of the plane mirror is 42⁰.

From the basic properties of image formed by plane mirror include;

  • the image formed is upright and
  • the image same distance from the mirror as the object.

The size of the image is the same as object = 26 cm.

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