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CET Karnataka Engineering CET - Karnataka Engineering Solved Paper-2002

  • question_answer
    An object is placed 12 cm to the left of a converging lens of focal length 8 cm. Another converging lens of 6 cm focal length is placed at a distance of 30 cm. to the right of the first lens. The second lens will produce:

    A)  virtual enlarged image

    B)  no image

    C)  a real inverted image

    D)  a real enlarged image

    Correct Answer: C

    Solution :

    \[R\propto \frac{1}{t}\] \[t=\]average time interval between two successive collision of electrons. When switched on, temperature of filament increases, there by K.E. of \[\bar{e}\] increases which increases the velocity of electron Hence time interval (t) between two collision decreases, hence R increases.


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