Advertisements
Advertisements
Question
Which of the following can be used to form a real image?
Options
Concave mirror only.
Plane mirror only.
Convex mirror only.
Both concave and convex mirrors.
Advertisements
Solution
Concave mirror only.
Explanation:
A concave mirror can form a real image when the object is placed at a distance greater than the focal point of the mirror. The real image formed by a concave mirror is inverted and can be projected onto a screen.
-
A plane mirror always forms a virtual, upright image, not a real image.
-
A convex mirror always forms a virtual, diminished image, not a real image.
Thus, only a concave mirror can form a real image in certain situations.
APPEARS IN
RELATED QUESTIONS
The rear view mirror of a car is a plane mirror. A driver is reversing his car at a speed of 2 m/s. The driver sees in his rear view mirror the image of truck parked behind his car. The speed at which the image of the truck appears to approach the driver will be ______.
A child is standing in front of a magic mirror. She finds the image of her head bigger, the middle portion of her body of the same size and that of the legs smaller. The following is the order of combinations for the magic mirror from the top.
In which of the following, the image of an object placed at infinity will be highly diminished and point sized?
______ mirrors form the perfect image of an object.
The ______ of a mirror determines the type of image it forms.
The ______ is an optical device with a polished surface that reflects the light falling on it.
Curved mirrors form the perfect image of an object.
A thin layer of molten aluminium or silver is used for coating glass plates that will then become mirrors.
Car rearview mirrors carry a warning message that “objects in the rearview mirror are closer than they appear”. Why do you think this is so?
Visit a laughing gallery in some science centre, or a science park or a village mela. You will find some large mirrors there. You can see your distorted and funny images in these mirrors. Try to find out the kind of mirrors used there.
