In the above figures f is located at the focal point of the lens. For each state

Question

In the above figures f is located at the focal point of the lens. For each statement select True or False.

An object placed to the left of f and the lens in Fig. a produces a real image.
An object placed to the left of f in Fig. a results in an image on the left side of the lens.
An object placed between f and the lens in Fig. a produces a virtual image.
An object placed to the left of f and the lens in Fig. b produces a real image.
An object placed between f and the lens in Fig. a results in an image on the right side of the lens.
An object placed to the left of f in Fig. b results in an image on the right side of the lens.
The lens in Fig. b is a diverging lens.

Explanation / Answer

An object placed to the left of f and the lens in Fig. a produces a real image. True

An object placed to the left of f in Fig. a results in an image on the left side of the lens. False

(when object distance > f , the image is formed on right)

  An object placed between f and the lens in Fig. a produces a virtual image. False

(virtual image in converging lens is formed when object distance < f )

An object placed to the left of f and the lens in Fig. b produces a real image. False

(diverging lens always produce virtual image)

  An object placed between f and the lens in Fig. a results in an image on the right side of the lens. False

(diverging lens forms virtual image on the same side as the object)

An object placed to the left of f in Fig. b results in an image on the right side of the lens. False

  The lens in Fig. b is a diverging lens. True

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