Science 10 Review (2)

Where will a screen be located so that a clear image of the object is projected?

• at F’

• at F

• at 2F

• Beyond 2F

What is the height of the image formed by the lens?

• Greater than the object’s height

• Lesser  than the object’s height

• Equal to the height of the object’s height

• Twice the height of the object’s height

What is the height of the image formed by the lens?

• Greater than the object’s height

• Lesser  than the object’s height

• Equal to the height of the object’s height

• Twice the height of the object’s height

When small object is placed on the principal axis of a concave mirror between the focus and the mirror, the image formed is _______?

• Inverted, reduced and real

• Erect, enlarged and virtual

• Inverted, enlarged and real

• Erect, reduced and real

Suppose you want to start a fire by focusing sunlight onto a piece of paper, what material are you going to use?

• Plane mirror

• Converging mirror

• Diverging mirror

• None of the above

Where should an object be placed in front of a concave mirror so that the image will have the same size as the object?

• At the focus

• Between the focus and the vertex

• At the center of curvature

• Between the center of curvature and focus

Zed stands 1.5m tall in front of a plane mirror. What is the height of the image?

• 4.5m

• 3.0m

• 2.0m

• 1.5m

When you place a bottle in front of a plane mirror, you will be able to see its reflection. Which of the following best describes the reflection?

• Real, upright and with the same height as the real object

• Virtual, upright and with the same height as the real object

• Real, inverted and with the same height as the real object

• Virtual, inverted and with the same height as the real object

How much larger will your classroom seem to appear if the entire two opposite walls of your classroom consists of plane mirror?

• 2x larger

• 3x larger

• 4x larger

• Infinite

Which of the following is/are true of a convex mirror?

I. It will never form a real image

II. An inverted image will be formed if the object distance is greater than the focal length

III. An object can be magnified if it is placed at p=3f

• I only

• II only

• I and II

• I, II and III