Two metallic blocks P and Q of masses in ratio $2 : 1$ are given same amount of heat. If their temperature rise by same amount, what is the ratio of their specific heat capacities?

1 : 2

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2 : 1

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1 : 3

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3 : 1

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Solution

The correct option is A $1 : 2$
Let the mass of P is $2 m$ , Q is $m$
$Δ T$ is same.
$Q = 2 m C_{p} Δ T = m C_{q} Δ T$
As same heat is given to P and Q.
$\Rightarrow \frac{C_{p}}{C_{q}} = \frac{1}{2}$

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Two metallic blocks P and Q of masses in ratio 2:1 are given same amount of heat. If their temperature rise by same amount, what is the ratio of their specific heat capacities?

The correct option is A 1:2Let the mass of P is 2m, Q is mΔT is same.Q=2mCpΔT=mCqΔTAs same heat is given to P and Q.⇒CpCq=12

Two metallic blocks P and Q of masses in ratio $2 : 1$ are given same amount of heat. If their temperature rise by same amount, what is the ratio of their specific heat capacities?

The correct option is A $1 : 2$
Let the mass of P is $2 m$ , Q is $m$
$Δ T$ is same.
$Q = 2 m C_{p} Δ T = m C_{q} Δ T$
As same heat is given to P and Q.
$\Rightarrow \frac{C_{p}}{C_{q}} = \frac{1}{2}$