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An image formed by a lens is erect. Such an image could be formed by a

Monjur Alahi

An image formed by a lens is erect. Such an image could be formed by a
(a) convex lens provided the image is smaller than object.
(b) concave lens provided the image is smaller than object.
(c) concave lens provided the image is larger than object.
(d) concave lens provided the image is of the same size.


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Salim Ahmed Kawsar

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(b) concave lens provided the image is smaller than object. 

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Identify the device used as a spherical mirror or lens in following cases, when the image formed is virtual and erect in each case.

(a) concave mirror (b) convex lens (c) concave lens (d) convex mirror

1 Answers 1 views
The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object?

(d) When an object is placed between the pole and principal focus of a concave mirror, the image formed is virtual, erect, and larger than the object.

1 Answers 2 views
No matter how far you stand from a mirror, your image appears erect. The mirror is likely to be

(d) A convex mirror always gives a virtual and erect image of smaller size of the object placed in front of it. Similarly, a plane mirror will always give a...

1 Answers 1 views
Name a mirror that can give an erect and enlarged image of an object.

Concave mirror can give an erect and enlarged image of an object, when object is placed between pole and focus of the mirror.

1 Answers 1 views
The image formed by a concave mirror is observed to be virtual, erect and larger than the object. Where should be the position of the object

The image formed by a concave mirror is virtual, erect and larger only when the object is placed between the pole of the mirror and its principal focus. So correct...

1 Answers 1 views
A doctor has prescribed a corrective lens of power + 1.5 D. Find the focal length of the lens. Is the prescribed lens diverging or converging?

Given P=+ 1.5D As P=1/f (in metre) , Focal length, f =1/P=1/1.5=0.667m=66.7cm As power of prescribed lens is positive, the lens is converging (or convex) lens.

1 Answers 1 views
Identify the device used (a spherical minor or lens) in following cases, when the image formed is virtual and erect in each case.

(a)Concave mirror (b) Convex lens (c) Concave lens (d) Convex mirror

1 Answers 1 views
An erect and enlarged image can be formed by

(b) only a concave mirror.

1 Answers 1 views
State whether the following statements are True or False. (a) A concave lens can be used to produce an enlarged and erect image.

(a) False (b) False (c) True (d) False

1 Answers 1 views
An illuminated object is placed on the principal axis of a converging lens so that a real image is formed on the other side of the lens. I

(b) the image will be shifted a little later than the object

1 Answers 1 views

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