Assertion :There are two identical spherical bodies fixed in two positions as shown. While moving from $A$ to $B$ gravitational potential first increases then decreases. Reason: At centre of $A$ and $B$ field strength will be zero.

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

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

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

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

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 B Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
The expression for gravitational potential at a distance $x$ from first sphere will be

$- \frac{G M m}{x} - \frac{G M m}{d - x} = - \frac{G M m d}{x (d - x)}$

This expression increases till $x = \frac{d}{2}$ and then decreases.

Field strength at center will be zero by symmetry since both will apply equal and opposite field. This only means that potential changes sign at the mid point.

Reason is not correct explanation for assertion.

Answer is option B.

Suggest Corrections

Similar questions

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.

Q. Assertion : Two electrons of helium atom are placed in only one shell but three electrons of lithium need two shells.
Reason: A shell can have maximum

{2n}^{2}

electrons.

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 (A) Bond angle in ethers is slightly less than the tetrahedral angle.
Reason (R) There is a repulsion between the two bulky (- R) groups.
(a) Assertion and reason both are correct and reason is correct explanation of assertion.
(b) Assertion and reason both are wrong statements.
(c) Assertion is correct statement but reason is wrong statement.
(d) Assertion is wrong statement but reason is correct statement.
(e) Both assertion and reason are correct statements but reason is not correct explanation of assertion.

Assertion (A) Rate constant determined from Arrhenius equation are fairly accurate for simple as well as complex molecules.

Reason (R) Reactant molecules undergo chemical change irrespective of their orientation during collision.

Join BYJU'S Learning Program

Assertion :There are two identical spherical bodies fixed in two positions as shown. While moving from A to B gravitational potential first increases then decreases. Reason: At centre of A and B field strength will be zero.

Assertion :There are two identical spherical bodies fixed in two positions as shown. While moving from $A$ to $B$ gravitational potential first increases then decreases. Reason: At centre of $A$ and $B$ field strength will be zero.