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प्रश्न
To determine the focal length of a convex lens by obtaining a sharp image of a distant object we generally follow the following steps which are not in proper sequence.
(a) Hold the lens between the object and the screen
(B) Measure the distance between the lens and the screen
(C) Select a well lit distant object
(D) Place a screen opposite to the object on the lab table
(e) Adjust the position of the lens to form a sharp image
The correct sequence of these steps is:
(A) c, a, d, e, b
(B) c, d, a, e, b
(C) c, d, e, a, b
(D) c, a, e, d, b
उत्तर
The correct sequence of steps is c, d, a, e, b.
The Correct Answer is B
संबंधित प्रश्न
In a convex spherical mirror, reflection of light takes place at:
(a) a flat surface
(b) a bent-in surface
(c) a bulging-our surface
(d) an uneven surface
If the focal length of a spherical mirror is 12.5 cm, its radius of curvature will be:
(a) 25 cm
(b) 15 cm
(c) 20 cm
(d) 35 cm
Which mirror has a wider field of view?
Name the mirror which can give:
an erect and diminished image of an object.
What kind of mirrors are used in big shopping centres to watch the activities of the customers?
Draw diagram to show how a convex mirror can be used to give a large field of view.
An object is kept at a distance of 5 cm in front of a convex mirror of focal length 10 cm. Calculate the position and magnification of the image and state its nature.
The nature of image formed by a convex mirror when the object distance from the mirror is less than the distance between pole and focal point (F) of the mirror would be ______.
If the object is at infinity in front of a convex mirror the image is formed at infinity.
Which type of mirror is used in the following?
Street lights
