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Which of the following formula is correc...

Which of the following formula is correct ? [ Where symbols have their usual meaning ]

A

`C_v=R/(gamma-1)`

B

`C_p=gamma^R/(gamma-1)`

C

`C_p/(C_v)=gamma`

D

All of these

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • In a triangle ABC, tanA and tanB satisfy the inequality sqrt(3)x^(2)-4x+sqrt(3) lt 0 , then which of the following must be correct ? (where symbols used have usual meanings)

    A
    `a^(2)+b^(2)-ab lt c^(2)`
    B
    `a^(2)+b^(2) gt c^(2)`
    C
    `a^(2)+b^(2)+ab gt c^(2)`
    D
    `a^(2)+b^(2) lt c^(2)`

  • If in a triangleABC , cos (A-C) cos B + cos 2 B =0 , then which of the following options is(are) correct? (where, the symbols have their usual meanings).

    A
    `sin^2 A + sin^2 C = 2 sin^2B`
    B
    `a^2,b^2` and `c^2` are in AP
    C
    `a^2,b^2` and `c^2` are in GP
    D
    sin A x sin C = `sin^2 B`

  • In a DeltaABC if (r )/(r_(1))=(r_(2))/(r_(3)) , then which of the following is/are true ? (where symbols used have usual meanings)

    A
    `a^(2)+b^(2)+c^(2)=8R^(2)`
    B
    `sin^(2)A+sin^(2)B+sin^(2)C=2`
    C
    `a^(2)+b^(2)=c^(2)`
    D
    `Delta=s(s+c)`

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