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calculate the energy equivalent of 10 gm of substance.

    • Posted by Ranuma Begum 6 years, 2 months ago

    CBSE > Class 12 > Physics
    • 1 answers

    Ajendra Singh 6 years, 2 months ago

    answer : 9 × 10¹³ J explanation : mass of substance , m = 1g = 10^-3 kg velocity of light , v = 3 × 10^8 m/s according to Enstien's energy - mass equivalent theory, Mass can be converted into pure energy . it is expressed by = 10^-3 × (3 × 10^8)² = 10^-3 × 9 × 10^16 J = 9 × 10¹³ J hence, 9 × 10¹³ J amount of energy is equivalent of 1g of substance. 5.0 explanation : mass of substance , m = 1g = 10^-3 kg velocity of light , v = 3 × 10^8 m/s according to Enstien's energy - mass equivalent theory, Mass can be converted into pure energy . it is expressed by E=mc^2 = 10^-3 × (3 × 10^8)² = 10^-3 × 9 × 10^16 J = 9 × 10¹³ J hence, 9 × 10¹³ J amount of energy is equivalent of 1g of substance.

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