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प्रश्न
Say TRUE or FALSE
We see a book because it reflects the light that falls on its surface
विकल्प
True
False
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उत्तर
We see a book because it reflects the light that falls on its surface- True
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संबंधित प्रश्न
What do you mean by the term reflection of light ?
Draw a diagram to show the reflection of a ray of light using a plane mirror. In the diagram, label the incident ray, the reflected ray, the normal, the angle of incidence and the angle of reflection.
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.
Copy the figure. By taking two rays from point A, show the formation of image. State four characteristics of the image.
Differentiate between a reflection and a shadow
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?
We can see objects because of ______.
