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9. A sample of metal weighs 210 gm in air, 180 gm in water and 120 gm in liquid. Then relative density (RD) of

(a)   Metal is 3                                       (b)   Metal is 7

(c)   Liquid is 3                                     (d)   Liquid is 1/3

Answer-b,c

(6)

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(a)      – 5 J (b)  – 10 J (c)   – 15 J (d)  – 20 J Answer-a (118)

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(a)      34 J (b)  70 J (c)   84 J (d)  134 J Answer-d (202)

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