Which of the following statements best describes the optical element hidden by t

Question

Which of the following statements best describes the optical element hidden by the black box in the diagram given the behavior of the parallel rays of light incident on it? A) The black box must contain a concur lens. B) The black box must contain a convex lens. C) The black box must contain a concave mirror. D) The black box must contain a convex mirror. E) The black box must contain a plane mirror. Which of the following wavelengths of light is not visible to the average human eye? A) 375 nm B) 433 ran C) 544 ran D) 605 nm E) 700 ran Which type of wave is an electromagnetic wave? A) longitudinal B) sound C) transverse D) None of these. For a particular mirror with an object in front of it, the image distance is positive and half the object distance in magnitude. What can be said of the image? A) It is real, upright and smaller than the object. B) It is virtual, upright and smaller than the object. C) It is real, inverted and smaller than the object. D) It is virtual, inverted and bigger than the object. E) It is real, upright and bigger than the object. Which of the rays labeled in the diagram to the right would likely correspond to visible light that is green?

Explanation / Answer

a) The blackbody must contain a plane mirror.

b) 375 nm is corresponding to UV radiation which is not visible for human eye.

c) Electromagnetic waves are transverse in nature as the polariation is orthogonal to the direction of propagation.

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