Magnification
Physics ⇒ Light and Optics
Magnification starts at 10 and continues till grade 12.
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See sample questions for grade 11
A concave mirror forms an image 10 cm high of an object 2 cm high. What is the magnification?
A convex mirror forms an image 4 cm high of an object 8 cm high. What is the magnification?
A lens forms an image 15 cm from the lens when the object is placed 5 cm from the lens. What is the magnification?
A lens forms an image that is 4 times smaller than the object and inverted. What is the magnification?
A microscope has an objective lens with magnification 10 and an eyepiece with magnification 5. What is the total magnification?
Describe what is meant by angular magnification.
Explain why the magnification of a plane mirror is always 1.
If a convex lens forms a virtual image, what can you say about the object position relative to the lens?
If a lens forms an image that is three times the size of the object and inverted, what is the magnification?
If an object 2 cm high produces an image 6 cm high, what is the magnification?
If the image distance (v) is +30 cm and the object distance (u) is -10 cm for a lens, what is the magnification?
If the image formed by a lens is virtual and larger than the object, what can you say about the magnification?
If the magnification of a lens is -0.5, what can you say about the image?
If the magnification produced by a mirror is +2, what does the '+' sign indicate?
The magnification produced by a convex lens is less than 1. What does this indicate about the image?
What is the formula for linear magnification (m) produced by a lens?
