MCQ- 18 ICSE Physics class 10 ch-2 Light

Class 10 - Light Quiz (Magnification Due to Spherical Lenses)

1. The magnification produced by a convex lens is positive when:

Image is real and inverted
Image is virtual and erect
Image is of the same size
Image is at infinity

2. The formula for magnification in spherical lenses is given by:

m = -v/u
m = u/v
m = v/u
m = 1/v

3. If the magnification produced by a lens is less than 1, the image is:

Diminished
Enlarged
Same size
Infinite

4. Magnification for a concave lens is always:

Less than 1 and negative
Greater than 1 and positive
Always equal to 1
Infinite

5. If the image height is double the object height, the magnification is:

2
0.5
1
-2

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