38 In the given diagram meters are not ideal If reading of ammeter and voltmeter are 6A and 30V respectively then ww A R (1) R 50 (2) R 50 (3) R 50 (4) All the above are possible 39 A cell of constant e m f is first connected to a resistance R and then connected to a resistance R2 If power delivered in both cases is equal, then the internal resistance of the cell is (1) RR (2) (3) (4) R1 R2 R1 R2 2 R1 R2 2 40 Keeping the principal of conservation of linear momentum in mind, which diagram is not correct m (1) 0 m m (2) G m, m m 90 (3) m m (4) BQ m 90 m 0 m 41 A bomb explodes into two parts of masses 3 kg and 1 kg If the total kinetic energy of the two parts is 6 0 104 joule then the momentum of the lighter part shall be (in kg m s) (1) 2 10 (2) 3 103 (3) 2 10 (4) 3 102

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38. In the given diagram meters are not ideal. If reading of ammeter and voltmeter are 6A and 30V respectively then :- ww-A R

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38. In the given diagram meters are not ideal. If reading of ammeter and voltmeter are 6A and 30V respectively then :- ww-A R (1) R=50 (2) R>50 (3) R

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