Grade 12th pass10 grade science
The coefficient of linear expansion of steel and brass are 11×10−6/∘C
and 19×10−6/∘C
respectively. If their difference in lengths at all temperature has to kept constant at 30 cm, their lengths at 0∘C
should be
A. 71.25 cm and 41.25 cm
B. 82 cm and 52 cm
C. 92 cm and 62 cm
D. 62.25 cm and 32.25 cm
The coefficient of linear expansion of steel and brass are 11×10−6/∘C
and 19×10−6/∘C
respectively. If their difference in lengths at all temperature has to kept constant at 30 cm, their lengths at 0∘C
should be
A. 71.25 cm and 41.25 cm
B. 82 cm and 52 cm
C. 92 cm and 62 cm
D. 62.25 cm and 32.25 cm
