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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 |
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
"A concave mirror of focal length 15 cm can form a magnified, erect as well as inverted image of an object placed in front of it." Justify this statement stating the position of the object with respect to the pole of the mirror in both the cases for obtaining the images.
A spherical mirror and a thin spherical lens have each a focal length of -15 cm. The mirror and the lens are likely to be ______.
A bright object 50 mm high stands on the axis of a concave mirror of focal length 100 mm and at a distance of 300 mm from the concave mirror. How big will the image be?
To construct ray diagram we use two light rays which are so chosen that it is easy to know their directions after reflection from the mirror. List these two rays and state the path of these rays after reflection. Use these rays to locate the image of an object placed between centre of curvature and focus of a concave mirror.
Why are concave mirrors used in solar devices?
In which equipment/s do you find ___________________
List four characteristics of the image formed by a concave mirror of focal length 40 cm when the object is placed in front of it at a distance of 20 cm from its pole.
Which of the following can make a parallel beam of light when light from a point source is incident on it?
Which of the following mirror is used by a dentist to examine a small cavity in a patient’s teeth?
Which type of mirror is used in the following?
Head lamps of a car
