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प्रश्न
The spherical mirror with a reflecting surface curved inward is called
पर्याय
convex mirror
concave mirror
curved mirror
None of the above
उत्तर
Concave mirror
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संबंधित प्रश्न
One half of a convex lens of focal length 10 cm is covered with a black paper. Can such a lens produce an image of a complete object placed at a distance of 30 cm from the lens? Draw a ray diagram to justify your answer. A 4 cm tall object is placed perpendicular to its principal axis of a convex lens of focal length 20 cm. The distance of the object from the lens is 15 cm. Find the nature, position and the size of the image.
Define the following term in the context of spherical mirrors:- Principal axis
A virtual image larger than the object can be produced by a ______.
Name the two types of spherical mirrors. What type of mirror is represented by the:
back side of a shining steel spoon?
Name the spherical mirror which can produce a virtual and diminished image of an object.
Draw separate diagram for the formation of virtual image of an object by a concave mirror.
A student obtained on a screen the sharp image of a candle flame placed at the farther end of laboratory table using a concave mirror. For getting better value of focal length of the mirror, the teacher suggested to him to focus the sun. What should the student do?
(A) Should move the mirror away from the screen.
(B) Should move the mirror towards the screen.
(C) Should move the mirror and screen both towards the sun.
(D) Should move only the screen towards the sun.
Explain why a ray of light passing through the center of curvature of a concave mirror, gets reflected along with the same pattern.
In the figure shown, the image of a real object is formed at the point I. AB is the principal axis of the mirror. The mirror must be:
In normal adjustment, for a refracting telescope, the distance between objective and eye piece is 30 cm. The focal length of the objective, when the angular magnification of the telescope is 2, will be ______.
