(0) Which of the following statements, about light is correct? i) A pinhole camera can take pictures of moving objects. ii) The image formed on the screen of a pinhole camera is erect. iii) Light rays incident on a plane mirror can be reflected. iv) Opaque objects emit light of their own.
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The velocity of an object is the rate of change of its position with respect to a frame of reference,and is a function of time. Velocity is a physical vector quantity; both magnitude and direction are needed to define it..
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iii) Light rays incident on a plane mirror can be raflected
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