MyQuestionIcon

5

You visited us 5 times! Enjoying our articles? Unlock Full Access!

Superficial Expansion

When a flat s...

Question

When a flat sheet of copper is heated , the increase in its area is called cubical expansion.

A

True

No worries! We‘ve got your back. Try BYJU‘S free classes today!

B

False

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is B False
When a flat sheet of copper is heated, the increase in its area is called surface expansion or areal expansion.

Suggest Corrections

thumbs-up

1

Similar questions

Q. A circular sheet of copper of radius 35 cm is at

20^{o} C

. On heating, its area increases by

14.5 c m^{2}

. If coefficient of linear expansion of copper is

1.7 \times 10^{- 5}^{o} C^{- 1}

, find the temperature to which the sheet was heated.

Q. A metal plate of area

1) 2 m^{2}

increases its area by

2) 4 \times 10^{- 4} m^{2}

when it is heated from

0^{\circ} C

100^{\circ} C

. The coefficient of cubical expansion of the metal expressed in per

^{\circ} C

Q. A thin copper wire of length

l metre

increases in length by

2 %

when heated through

10^{\circ} C .

What is the percentage increase in area , when a square copper sheet of length

l metre

is heated through

10^{\circ} C

Q. When the temperature of a metal sphere increases by

100^{\circ} C

, its surface area increases by 0.2%. Coefficient of cubical expansion of the sphere is :

Q. Each side of a box made of metal sheet in cubic shape is

a

at room temperature

T

. The coefficient of linear expansion of the metal sheet is ‘

α

’. The metal sheet is heated uniformly, by a small temperature

Δ

T

, so that its new temperature is

T + Δ

T

. Calculate the increase in the volume of the metal box.

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Superficial Expansion

PHYSICS

Watch in App

explore_more_icon

Explore more

Superficial Expansion

Standard VIII Physics

Join BYJU'S Learning Program

CrossIcon