JAMB Physics 2010 Objective — Question 16
Question 16 of 50 from the Joint Admissions and Matriculation Board (JAMB) Physics 2010 Objective paper, with the correct answer and a full explanation.
Advertisement
16. Two metals P and Q of lengths l1 and l2 are heated through the same temperature difference. If the ratio of the linear expansivities of P to Q is 2:3, and the ratio of their lengths is 3:4. What is the ratio of increase in lengths of P to Q? A. 5:7 B. 2:1 C. 1:2 D. 7:5
- A. 5:7
- B. 2:1
- C. 1:2Correct
- D. 7:5
Explanation
Since there is no loss of oil, the mass is constant. From the relation Density = Mass/Volume, it follows that density is proportional to 1/Volume, k=density x volume.
Advertisement
Sign up free to unlock
- Score tracking
- Practice history
- Saved questions
- Progress dashboard
- Personalized sessions
- Weak-topic breakdown
…and/or go further with premium services and No Ads.