Assertion :A brass disc is just fitted in a hole in a steel plate. The system may be cooled to loosen the disc from the hole. Reason: The coefficient of linear expansion for brass is greater than the coefficient of linear expansion for steel.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion

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

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion

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

Assertion is correct but Reason is incorrect

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

Both Assertion and Reason are incorrect

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

Open in App

Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
$α$ for brass $(19 \times 10^{- 4})$ is greater than that of steel $(11 \times 10^{- 4})$ .
On cooling the disc shrinks to a greater extent than the hole and hence it will get loose.

Suggest Corrections

Similar questions

H_{2}

H e

(1 + \frac{P b}{R T})

H_{2}

H e

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Assertion: Nitriding is the process of heating steel in presence of $N_{2}$ to convert it completely into iron nitride.

Reason: The surface of steel becomes hard after nitriding process

Assertion – Nitriding is the process of heating steel in presence of $N_{2}$ to convert it completely into a chemical compound - iron nitride.

Reason: The surface of steel becomes hard after nitriding process

Join BYJU'S Learning Program