Advertisements
Advertisements
Question
The height of the image formed by an object of height 10 cm placed in front of a plane mirror is __________.
(a) 5 cm
(b) 10 cm
(c) 15 cm
(d) 20 cm
Advertisements
Solution
10 cm
The height of the image formed by a plane is always equal to the height of the object placed before it.
APPEARS IN
RELATED QUESTIONS
An object of 10 cm is placed in front of a plane mirror. The height of image will be …………….
(a) 5 cm
(b) 15 cm
(c) 20 cm
(d) 10 cm
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
What sign (+ve or −ve) has been given to the following on the basis of Cartesian Sigh Convention?
Height of a real image.
If the magnification of a body of size 1 m is 2, what is the size of the image?
What is the nature of image formed by a concave mirror if the magnification produced by the mirror
−2?
Define linear magnification produced by a mirror.
Fill in the following blank with suitable word:
If the magnification has a minus sign, than the image is ......... and .......
A dentist's mirror has a radius of curvature of 3 cm. How far must it be placed from a small dental cavity to give a virtual image of the cavity that is magnified five times?
One wants to see a magnified image of an object in a mirror. What type of mirror should one use?
Write down the magnification formula for a lens in terms of object distance and image distance. How does this magnification formula for a lens differ from the corresponding formula for a mirror?
What is the nature of the image formed by a convex lens if the magnification produced by the lens is +3?
An object is placed at a distance of 100 cm from a converging lens of focal length 40 cm.
(i) What is the nature of image?
(ii) What is the position of image?
At what distance should an object be placed from a convex lens of focal length 18 cm to obtain an image at 24 cm from it on the other side? What will be the magnification produced in this case?
A lens of focal length 20 cm is used to produce a ten times magnified image of a film slide on a screen. How far must the slide be placed from the lens?
Linear magnification produced by a convex lens can be:
(a) less than 1 or more than 1
(b) less than 1 or equal to 1
(c) more than 1 or equal to 1
(d) less than 1, equal to 1 or more than 1
Magnification produced by a concave lens is always:
(a) more than 1
(b) equal to 1
(c) less than 1
(d) more than 1 or less than 1
A negative sign in the value of magnification indicates that the image is ______.
What do you mean by linear magnification?
