D) di 7.24 cm, m- 0.48 E) di 7.24 cm, m- 2.1 23) If an object is placed in front

Question

D) di 7.24 cm, m- 0.48 E) di 7.24 cm, m- 2.1 23) If an object is placed in front of a single lens and the lens forms a virtual image of an object, then A) the lens can only be a diverging lens. B) the lens can only be a converging lens. the lens could be either a diverging or a converging lens. the image must be inverted. E) the object can only be placed between the lens and its focal point. 24) Complet e the following statement: The term dispersion refers to the fact that the index of refraction of certain materials A) depends on the Brewster angle. B) depends on the wavelength of light. C) depends on the angle of incidence. D) depends on the intensity of light. E) depends on the polarization of light. 5 of 7

Explanation / Answer

1) option (c) is correct.

Lens may be converging or diverging they may form virtual image of object placed in front of it.

If lena will be diverging it always forms virtual image for any location of real object in front of it .But if in case of converging lens also a virtual image can be obtained if object is placed between focus and pole of lens.

2) Dispersion refers to the fact that refraction index depend on wavelength of light.

Option (B) is correct.

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