When an Object Is Placed 15 Cm from a Lens,a

question 26

Multiple Choice

When an object is placed 15 cm from a lens,a virtual image is formed.Which one of the following conclusions is incorrect?

• A)The lens may be a convex or concave.
• B)If the image is upright the lens must be a diverging lens.
• C)If the image is reduced,the lens must be a diverging lens.
• D)If the lens is a diverging lens,the image distance must be less than 15 cm.
• E)If the lens is a converging lens,the focal length must be greater than 15 cm.

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Definitions:

Median

The middle value in a list of numbers, which divides the distribution into two equal halves.

Range

The difference between the highest and lowest scores in a dataset, showing the spread or dispersion of the values.

Frequency Polygons

Graphical representations of the distribution of data points, where frequencies are depicted by connecting midpoints of intervals.

Frequency Distributions

A statistical representation, often in the form of a table or graph, showing how often different values occur within a data set.