A.  linear magnification

        B.  power of lens

        C.  inverse of object distance from lens

        D.  inverse of image distance from lens

        A.  images must always be sharply focused

        B.  the tip of object pin must be at the same height as the centre of lens

        C.  images obtained must always be magnified

        D.  parallax error must be avoided

        A.  virtual, inverted, 12cm behind mirror and magnified 3 times

        B.  real, inverted, 12cm in front of mirror and diminished 3 times

        C.  virtual, erect, 60cm behind mirror and magnified 3 time

        D.  real, erect, 60cm in front of mirror and diminished 3 times

        A.  rays incident at the centre of the mirror are reflected through the centre of curvature

        B.  rays passing through the centre of curvature are reflected through the pricipal focus

        C.  rays passing through the principal focus are reflected on themselves

        D.  rays parallel and close to the principal axis are reflected through the pricipal focus

        A.  magnifying glasses

        B.  driving mirrors

        C.  dentist mirrors

        D.  artist mirrors

        A.  slope of the graph

        B.  inverse of the the slope of the graph

        C.  intercept on the vertical axis

        D.  intercept on the horizontal axis

        A.  image distance is negative for for real image

        B.  object distance is positive

        C.  image distance is negative for virtual image

        D.  focal length is negative for convex mirrors

        A.  the potential difference under test is zero

        B.  current is varying in the circuit

        C.  current is increasing in the circuit

        D.  potential differences are balanced

        A.  rheostat

        B.  thermostat

        C.  galvanometer

        D.  ammeter

        A.  the potentiometer wire is assumed to be uniform

        B.  it does not draw current from the circuit under test

        C.  the temperature of the wire must remain constant

        D.  faults may arise due to breaks or wrong connections in the circuit

You can now use you matric number to login as your username and  password in a lowercase.

https://elearn.nouedu2.net/login/

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