MyQuestionIcon

1

You visited us 1 times! Enjoying our articles? Unlock Full Access!

Newton's Law of Gravitation

If the univer...

Question

If the universal gravitational constant was time dependent, then which of the following quantities would be conserved?

A

Potential energy

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

B

Kinetic energy

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

C

Linear momentum

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

D

Angular momentum

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

Open in App

Solution

The correct option is A Potential energy
$P . E = \frac{G M m}{R}$
If $G = G (t)$ [Time dependent]
$∴ P . E$ will be conserved.

Suggest Corrections

thumbs-up

0

Similar questions

E, M, J

G

respectively denote energy, mass, angular momentum and universal gravitational constant, the quantity, which has the same dimensions as the dimensions of

\frac{E J^{2}}{M^{5} G^{2}}

Q. The energy (E), angular momentum (L) and universal gravitational constant (G) are chosen as fundamental quantities. The dimensions of universal gravitational constant in the dimensional formula of Planck's constant (h) is

Q. The energy (

E

), angular momentum (

L

) and universal gravitational constant (

G

) are chosen as fundamental quantities. The dimensions of universal gravitational constant in the dimensional formula of planks constant (

h

Q. Universal gravitational constant is equal to force when they are separated by a unit distance and both the masses of body is are 1 kg respectively. Now since universal gravitational constant is equal to the force then, since force is vector quantity than universal gravitational constant must be a vector quantity but universal gravitational constant is a scalar quantity. How does this happen. Please explain

Q. If Planck's constant (h) and speed of light in vacuum (c) are taken as two fundamental quantities, which one of the following can, in addition be taken to express length, mass and time in terms of the three chosen fundamental quantities ?
i) Mass of electron (

m_{e}

)
ii) Universal gravitational constant (G)
iii) Charge of electron (e)
iv) Mass of proton (

m_{p}

)

View More

Join BYJU'S Learning Program

similar_icon

Related Videos

lock

Kepler's Law

PHYSICS

Watch in App

explore_more_icon

Explore more

Newton's Law of Gravitation

Standard XII Physics

Join BYJU'S Learning Program

CrossIcon