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JEE Main & Advanced Physics Elasticity Question Bank Youngs Modulus and Breaking Stress

  • question_answer
    The ratio of two specific heats of gas \[{{C}_{p}}/{{C}_{v}}\] for argon is 1.6 and for hydrogen is 1.4. Adiabatic elasticity of argon at pressure P is E. Adiabatic elasticity of hydrogen will also be equal to E at the pressure

    A) P             

    B)                 \[\frac{8}{7}P\]

    C)                 \[\frac{7}{8}P\]    

    D)                 1.4 P

    Correct Answer: B

    Solution :

        Adiabatic elasticity \[E=\gamma P\] For argon \[{{E}_{Ar}}=1.6\ P\]                   ?.(i) For hydrogen\[{{E}_{H2}}=1.4P'\]  ?.(ii) As elasticity of hydrogen and argon are equal \\[1.6P=1.4P'\] Þ\[P'=\frac{8}{7}P\]    


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