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When two objects A and B are supplied with the same quantity of heat, the...

Physics
JAMB 2019

When two objects A and B are supplied with the same quantity of heat, the temperature change in A is obtained to be twice that of B. The mass of A is half that of B. The ratio of the specific heat capacity of A to B is

  • A. 1 : 4
  • B. 4 : 1
  • C. 1 : 1
  • D. 2 : 1
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Correct Answer: Option C
Explanation

θA = 2θ\(_{B}\),

m\(_A\) = 1
2
m\(_B\)


H = MCθ
m\(_A\)c\(_A\)θ\(_A\) = m\(_B\)c\(_B\)θ\(_B\)
( 1/2 m\(_B\))C\(_A\) (2θ\(_B\)) = m\(_B\)c\(_B\)θ\(_B\)

 

C\(_A\)
C\(_B\)
= 1
1
 


⇒ 1 : 1

 

There is an explanation video available below.


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Explanation Video

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Post-UTME Past Questions - Original materials are available here - Download PDF for your school of choice + 1 year SMS alerts