Download App

Gravitation — Physics STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 SciencePhysicsGravitation2 Marks
Question
We can shield a charge from electric fields by putting it inside a hollow conductor. Can we shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?
✓

Answer

The gravitational force does not depend upon the nature of the medium, but the electric force depends on the intervening medium between the charge and the electric field. So we cannot shield a body from the gravitational force.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "2 Marks Questions" from Gravitation→Gravitation — all question types→Physics STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Why is exposure to X-rays injurious to health but not exposure to visible light, when both are electromagnetic waves?
→
Two conducting spheres of radii $R_1$ and $R_2$ are kept widely separated from each other. What are their individual capacitances? If the spheres are connected by a metal wire, what will be the capacitance of the combination? Think in terms of series-parallel connections.
→
If the frequency of a tuning fork is 400Hz and the velocity of sound in air is 320m/s, find how far does the sound travel when the fork executes 30 vibrations.
→
Two concentric spherical shells have masses $M_1, M_2$ and radii $R_1, R_2 (R_1, < R_2)$. What is the force exerted by this system on a particle of mass $m_1$ if it is placed at a distance $\frac{\text{R}_1+\text{R}_2}{2}$ from the centre?
→
Define gravitational potential energy. Give its SI unit.
→
Can a room be cooled by leaving the door of an electric refrigerator open?
→
A block of mass M is held against a rough vertical wall by pressing it with a finger. If the coefficient of friction between the block and the wall is $\mu$ and the acceleration due to gravity is g, calculate the minimum force required to be applied by the finger to hold the block against the wall?
→
Let $\overrightarrow{\text{A}}=5\vec{\text{i}}-4\vec{\text{j}}$ and $\overrightarrow{\text{B}}=-7.5\vec{\text{i}}+6\vec{\text{j}}.$
  1. Do we have $\overrightarrow{\text{B}}\text{k}\vec{\text{A}}?$
  2. Can we say $\frac{\overrightarrow{\text{B}}}{\overrightarrow{\text{A}}}=\text{k}?$
→
A photographic film is coated with a silver bromide layer. When light fells on this film, silver bromide molecules dissociate end the film records the light there. A minimum of 0.6eV is needed to dissociate a silver bromide molecule. Find the maximum wavelength of light that can be recorded by the film.
→
A disturbance pulse takes 0.2 second to travel across a long wire and return. Tension is created in the wire by continuously hanging a weight 100 times the total weight of the wire on a pulley. Find the total length of the wire. Here g = 9.8 m/s.
→