1 A ray from an object passes through a thin lens. What can we conclude about the lens from this ray? - ANSWER C It's not possible to tell which type of
... [Show More] lens it is.
2 If a single lens forms a real image, we can conclude that - ANSWER A It is a converging lens
3 If a single lens forms a virtual image, we can conclude that - ANSWER C It could be either type of lens
4 An object lies outside the focal point of a converging lens. Which of the following statements about the image formed by the lens must be true? - ANSWER A The image is always real and inverted.
D The image is always on the opposite side of the lens from the object
5 An object lies outside the focal point of a diverging lens. Which of the following statements about the image formed by this lens must be true? - ANSWER D The image is always virtual and on the same side of the lens as the object
6 A spherical mirror is shown and the object is placed in front of the curved front surface. Which of the following statements about this mirror must be true?on - ANSWER A Its radius of curvature is negative.
D It always produces a virtual image on the opposite side of the mirror from the object
7 An object is beyond the focal point of a converging lens. If you want to bring its image closer to the lens, you should move the object - ANSWER A Away from the lens
8 A thin glass lens has a focal length f in air. If you now make a lens of identical shape, using lass having twice the refractive index of the original glass, the focal length of the new lens will be - ANSWER B less than f/2
9 A ray from an object passes through a thin lens. What can we conclude about the lens from this ray? - ANSWER B It must be a diverging lens
10 As you move an object from just outside to just inside the focal point of a converging lens, its image - ANSWER A Goes from real to virtual and from inverted to erect
11 As you move an object from just outside to just inside the focal point of a diverging lens, its image - ANSWER E Remains both erect and virtual [Show Less]