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प्रश्न
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संबंधित 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?
How will you explain the statement 'we cannot see the objects in a dark room'?
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.
Does the mirror named by you above give real images for all locations of object?
State whether the following statement is true or false. If false, correct it.
If a ray of light incident on a plane mirror is such that it makes an angle of 30o with the mirror, then the angle of reflection is 60o.
A ray of light is travelling in a direction perpendicular to the boundary of a parallel glass slab. The ray of light ______.
______ through which light can pass completely.
Materials which reflect the light well are called ______.
A beam of light is incident through the holes on side A and emerges out of the holes on the other face of the box as shown in the Figure. Which of the following could be inside the box?
