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प्रश्न
Match the following.
| Convex mirror | Radio telescopes |
| Parobolic mirror | Rear – view mirror |
| Snell’s law | Kaleidoscope |
| Dispersion of light | sin i/sin r =μ |
| Refractive index | Rainbow |
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उत्तर
| Convex mirror | Rear – view mirror |
| Parobolic mirror | Radio telescopes |
| Snell’s law | sin i/sin r =μ |
| Dispersion of light | Rainbow |
| Refractive index | Kaleidoscope |
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संबंधित प्रश्न
For what position of an object, a concave mirror forms a real image equal in size to the object?
Explain why, concave mirrors are used as shaving mirrors.
A concave mirror produces a real image 1 cm tall of an object 2.5 mm tall placed 5 cm from the mirror. Find the position of the image and the focal length of the mirror.
An object is placed just outside the principal focus of concave mirror. Draw a ray diagram to show how the image is formed, and describe its size, position and nature.
What type of image/images are formed by:
a convex mirror?
Radius of curvature of a spherical mirror is ............. its focal length.
Why does obtaining the image of the sun on paper with the help of a concave mirror burn the paper?
Study the following ray diagram and list two mistakes committed by the student while tracing it. Rectify these mistakes by drawing the correct ray diagram to show the real position and size of the image corresponding to the position of the object AB.
A concave mirror of radius 30 cm is placed in water. It’s focal length in air and water differ by ______.
A concave mirror of focal length 20 cm forms an image having twice the size of object. For the virtual position of object, the position of object will be at ______.
