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Fill in the blanks:
(a) An image that cannot be obtained on a screen is called ________.
(b) Image formed by a convex ________ is always virtual and smaller in size.
(c) An image formed by a ________ mirror is always of the same size as that of the object.
(d) An image which can be obtained on a screen is called a _______image.
(e) An image formed by a concave ________cannot be obtained on a screen.
virtual image
,mirror
,plane
,real
,lens
Mark ‘T’ if the statement is true and ‘F’ if it is false:
A.
We can obtain an enlarged and erect image by a convex mirror
B.
A concave lens always forms a virtual image
C.
We can obtain a real, enlarged and inverted image by a concave mirror.
D.
A real image cannot be obtained on a screen.
E.
A concave mirror always forms a real image.
A. False
B. True
C. True
D. False
E. False
Match the items given in Column I with one or more items of Column II.
| Column I | Column II | ||
| (a) | A plane mirror | (i) | Used as a magnifying glass. |
| (b) | A convex mirror | (ii) | Can form image of objects spread over a large area. |
| (c) | A convex lens | (iii) | Used by dentists to see enlarged image of teeth. |
| (d) | A concave mirror | (iv) | The image is always inverted and magnified. |
| (e) | A concave lens | (v) | The image is erect and of the same size as the object. |
| (vi) | The image is erect and smaller in size than the object. |
(a) (v)
A plane mirror forms an image which is erect and of the same size as the object.
(b) (ii) and (vi)
A convex mirror forms a virtual, diminished, and upright image and therefore, covers a larger area of view. Its field of view is very large.
(c) (i)
A convex lens can form a magnified image of the object. Therefore, it is used as a magnifying glass.
(d) (iii)
A concave mirror forms an enlarged image of the object. Therefore, it is used to see an enlarged image of teeth by the dentist.
(e) (vi)
The image formed by a concave lens is always virtual, upright and erect.
State the characteristics of the image formed by a plane mirror.
The image formed by a plane mirror is erect, laterally inverted, and of the same size as that of the object. The left side of the object appears on the right side of the image. Also, the distance of the image from the plane mirror is same as the distance between the plane mirror and the object.
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Mock Test Series
Mock Test Series