Advertisements
Advertisements
प्रश्न
Draw a figure describing the following.
The reflecting surface of two mirrors make an angle of 90∘ with each other. If a ray incident of one mirror has an angle of incidents of 30∘, draw the ray reflected from the second mirror. What will be its angle of reflection?
Advertisements
उत्तर
Let r2 be the angle of reflection from the second mirror.
From laws of reflection,
`angle i _1 = angle r_1 = 30° `
Now in `triangle` ABC
θ = 180° − 90° − 60° = 30°
⇒ i2 = 60°
Hence, r2 = 60°
The angle of reflection of incident ray is 60∘.
संबंधित प्रश्न
The reflection of light from a wooden surface is _________ reflection.
Write down four characteristics of image formed in a plane mirror.
An object 1.5 cm high when placed in front of a concave. the mirror produces a virtual image 3 cm high. If the object is placed at a distance of 6 cm from the pole of the mirror, calculate:
- the position of the image
- the focal length of the mirror.
Does the mirror named by you above give real images for all locations of object?
Draw two sets of rays of light to show the formation of an image of the letter as shown in figure p.
Locate the image termed when the object is placed between two planes as shown in the following figure.
Define the term Principle axis.
Materials which reflect the light well are called ______.
We can see objects because of ______.
