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Standard XII

Physics

Anomalous Expansion of Water

Assertion :In...

Question

Assertion :In the figure shown, $v$ and $R$ will increase if pressure above the liquid surface inside the chamber is increased. Reason: Value of $v$ or $R$ is independent of density of liquid.

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

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

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Assertion is correct but Reason is incorrect

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Both Assertion and Reason are incorrect

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Solution

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Velocity & Range of the distance are directly proportional to the pressure above the liquid and it is pure mechanics and given by
$v = \sqrt{2 g h} & R = 2 \sqrt{(H - h) h .}$

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Similar questions

Q. Assertion : In the bonding molecular orbital (MO) of

H_{2}

, the electron density is increased between the nuclei.
Reason : The bonding MO is

ψ_{A} + ψ_{B}

, which shows destructive interference of the combining electron waves.

Q. Assertion: The compressibility factor for

H_{2}

and

H e

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

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

Q. Assertion: The impurities such as

{SiO}_{2}

present in iron ore is removed by

{CaCO}_{3}

.

Reason:

CaO

formed by decomposition of

{CaCO}_{3}

reacts with

{SiO}_{2}

to form slag.

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Assertion :In the figure shown, v and R will increase if pressure above the liquid surface inside the chamber is increased. Reason: Value of v or R is independent of density of liquid.

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for AssertionVelocity & Range of the distance are directly proportional to the pressure above the liquid and it is pure mechanics and given by v=√2gh&R=2√(H−h)h.

Assertion :In the figure shown, $v$ and $R$ will increase if pressure above the liquid surface inside the chamber is increased. Reason: Value of $v$ or $R$ is independent of density of liquid.

The correct option is B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
Velocity & Range of the distance are directly proportional to the pressure above the liquid and it is pure mechanics and given by
$v = \sqrt{2 g h} & R = 2 \sqrt{(H - h) h .}$