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

Byju's Answer

Standard XII

Physics

Horizontal and Vertical Components of Projectile Motion

Two identical...

Question

Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of $30^{\circ}$ with each other. When suspended in a liquid of density $0.8 g / c m^{3}$ , the angle remains the same. If the density of the material of the sphere is $1.6 g m / c m^{3}$ , the dielectric constant of the liquid is

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

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

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

Open in App

Solution

The correct option is C 2
$t a n θ = \frac{F}{W} = \frac{F}{m g} t a n θ = \frac{F^{'}}{m g - U} ∴ \frac{F^{'}}{m g - U} = \frac{F}{m g} \Rightarrow \frac{F}{F^{'}} = \frac{m g}{m g - U} ∴ k = \frac{/ V . ρ . / g}{/ V (ρ - 0.8) / g} K = \frac{1.6}{16 - 0.8} = \frac{1.6}{0.8} = 2$

Suggest Corrections

Similar questions

Q. Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of

30^{\circ}

with each other. When suspended in a liquid of density

0.8 {g /cm}^{3}

, the angle remains the same. If density of the marterial of the sphere is

1.6 {g /cm}^{3}

, then dielectric constant of the liquid is

Two identical charged spheres are suspended by strings of equal length. The strings make an angle of 30

^{\circ}

with each other. When suspended in a liquid of density

0.8 g / c c

, the angle remains the same. The dielectric constant of the liquid is :

[density of the material of sphere is

1.6 g / c c

]

Q. Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of

30^{\circ}

with each other. When suspended in a liquid of density

0.8 g c m^{- 3}

the angle remains the same. If density of the material of the sphere is

1.6 g c m^{- 3}

, the dielectric constant of the liquid is

Q. Two identical charged spheres are suspended by strings of equal lengths. The strings make an angle of

30^{0}

with each other. When suspended in a liquid of density 0.8

g c m^{- 3}

, the angle remains the same. lf density of the material of the sphere is 1.6

g c m^{- 3}

, the dielectric constant of the liquid is:

Two identical charged spheres are suspended by strings of equal length and the strings make certain angle with each other. When suspended in a liquid of density $400 k g / m^{3}$ , the angle between the threads remains the same. If the density of the material of the sphere is $1600 k g / m^{3}$ , the dielectric constant of the liquid:

Join BYJU'S Learning Program

The correct option is C 2tan θ=FW=Fmgtan θ=F′mg−U ∴F′mg−U=Fmg⇒FF′=mgmg−U∴k=/V.ρ./g/V(ρ−0.8)/gK=1.616−0.8=1.60.8=2

The correct option is C 2
$t a n θ = \frac{F}{W} = \frac{F}{m g} t a n θ = \frac{F^{'}}{m g - U} ∴ \frac{F^{'}}{m g - U} = \frac{F}{m g} \Rightarrow \frac{F}{F^{'}} = \frac{m g}{m g - U} ∴ k = \frac{/ V . ρ . / g}{/ V (ρ - 0.8) / g} K = \frac{1.6}{16 - 0.8} = \frac{1.6}{0.8} = 2$