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प्रश्न
What is the nature of image formed by a concave mirror if the magnification produced by the mirror
−2?
उत्तर
The image formed by a concave mirror, with a magnification of -2, is real and inverted.This is because, the height of the object is above the principal axis and that of the image, below it.
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संबंधित प्रश्न
Where should an object be placed in front of the concave mirror so as to obtain its virtual, erect and magnified image?
For which positions of the object does a concave mirror produce an inverted, magnified an real image?
Which type of mirror could be used as a dentist's mirror?
The image formed by a concave mirror is virtual, erect and magnified. The position of object is:
(a) at focus
(b) between focus and centre of curvature
(c) at pole
(d) between pole and focus
A virtual, erect and magnified image of an object is to be produced with a concave mirror of focal length 12 cm. Which of the following object distance should be chosen for this purpose?
(i) 10 cm
(ii) 15 cm
(iii) 20 cm
Give reason for your choi
What sign (+ve or −ve) has been given to the following on the basis of Cartesian Sigh Convention?
Height of a virtual image.
One wants to see a magnified image of an object in a mirror. What type of mirror should one use?
An object placed 4 cm in front of a converging lens produces a real image 12 cm from the lens.
(a) What is the magnification of the image?
(b) What is the focal length of the lens?
(c) Draw a ray diagram to show the formation of image. Mark clearly F and 2F in the diagram.
A convex lens produces a magnification of + 5. The object is placed:
(a) at focus
(b) between f and 2f
(c) at less than f
(d) beyond 2f
What is meant by magnification? Write its expression. What is its sign for real image and virtual image?
