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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
Define the radius of curvature of spherical mirrors.
Which mirror has a wider field of view?
Which mirror always produces a virtual, erect and diminished image of an object?
Where would the image be formed by a convex mirror if the object is placed:
between infinity and pole of the mirror?
Draw labelled ray-diagrams to show the formation of image in both the case.
What is the effect on the size and position of the image of moving the object (i) towards the lens, and (ii) away from the lens?
At the point of incidence, a line drawn at right angles to the surface, separating the two media, is called the normal.
A ray of light passing through centre of curvature of a spherical mirror, after reflection
A convex mirror is used
A 5 cm tall object is placed perpendicular to the principle axis of a convex lens of focal length 12 cm. The distance of the object from the lens is 8 cm. Using the lens formula, find the position, size and nature of the image formed.
An object at a distance of +15 cm is slowly moved towards the pole of a convex mirror. The image will get ______.
