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प्रश्न
उत्तर
Angle of reflection to the normal = angle of incidence to the normal = 20°
So the angle between incident ray and reflected ray = Angle of incidence + Angle of reflection = 20 + 20 = 40°
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संबंधित प्रश्न
State four uses of a plane mirror.
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.
The reflection of a ray of light (OA) normally incident on a plane mirror is shown below
What are the angles of incidence and reflection?
The word PLATE written on a paper is held in front of a plane mirror. Write down the letters as seen in the following case.
The paper is held perpendicular to the mirror.
Say TRUE or FALSE
We see planets because they reflect light from the sun
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?
A ray of light is travelling in a direction perpendicular to the boundary of a parallel glass slab. The ray of light ______.
