Physics

Complete the following by choosing the correct answers from the bracket:

(a) The ideal mechanical advantage of a single movable pulley is …………… [less than 1 / more than 1 / equal to 1].

(b) If different colours of light strike a rectangular glass block at same angle of incidence, then maximum lateral displacement will be shown by …………… [Red / Green / Blue] colour.

(c) 1 joule equals to …………… [0.24 / 0.48 / 4.2] calorie.

(d) The hole in the right side of the socket is for connection to the …………… [live / neutral / earth] wire.

(e) The direction of the induced current in the coil of an AC generator is determined by …………… [Fleming’s left-hand rule / Fleming’s right-hand rule / Clock Rule].

(f) In a nuclear reactor, the fission reaction is initiated by bombardment with …………… [a proton / a neutron / an α particle].

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Answer

(a) The ideal mechanical advantage of a single movable pulley is more than 1.

(b) If different colours of light strike a rectangular glass block at same angle of incidence, then maximum lateral displacement will be shown by Blue colour.

(c) 1 joule equals to 0.24 calorie.

(d) The hole in the right side of the socket is for connection to the live wire.

(e) The direction of the induced current in the coil of an AC generator is determined by Fleming’s right-hand rule.

(f) In a nuclear reactor, the fission reaction is initiated by bombardment with a neutron.

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