A metal rod 800mm long is heated from 10 o C to 95 o C.
PHYSICS
JAMB 1993
A metal rod 800mm long is heated from 10oC to 95oC. If it expands by 1.36mm, the linear expansivity of the metal is
- A. 2.0 x 102K-1
- B. 2.0 x 102K-1
- C. 5.0 x 10-3K-1
- D. 2.0 x 10-5K-1
Correct Answer: D. 2.0 x 10-5K-1
Explanation
a = \(\frac{1.36}{800 \times (95 - 10)}\)
= 2.0 x 10-5K-1
Post an Explanation Or Report an Error
If you see any wrong question or answer, please leave a comment below and we'll take a look. If you doubt why the selected answer is correct or need additional more details? Please drop a comment or Contact us directly. Your email address will not be published. Required fields are marked *