Question
Answer the following: You can shield a charge from electrical forces by putting it inside a hollow conductor. Can you shield a body from the gravitational influence of nearby matter by putting it inside a hollow sphere or by some other means?

Answer

No. Electrical forces depend upon the nature of the intervening medium while the gravitational forces don’t depend upon the nature of the intervening medium. So, such shielding acts are not possible in case of gravitation i.e., gravity screens are not possible.

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

Similar questions

A piece of paper wrapped tightly on a wooden rod is observed to get charred quickly when held over a flame as compared to a similar piece of paper when wrapped on a brass rod. Explain why?
A diatomic gas is suddenly compressed to 1/4 of its initial volume. Find the ratio of final and initial pressure $(\gamma = 1.5)$.
Show that in elastic one dimensional collision, velocity of approach before collision is equal to velocity of separation after collision.
A planet reduces its radius by 1% with its mass remaining same. How acceleration due to gravity varies?
Answer the following questions:Time period of a particle in SHM depends on the force constant k and mass m of the particle: $\text{T}=2\pi\sqrt{\frac{\text{m}}{\text{k}}}.$ A simple pendulum executes SHM approximately. Why then is the time period of a pendulum independent of the mass of the pendulum?
A human is moving on a plane surface with a box in his hand whose mass is 2 kg . If he walks with an acceleration of $0.5 m / s ^2$ to distance 40 m then what will be the work done by the man on the box during the motion?
Solid spheres of equal mass are made of different materials. What will be the relation between the moment of inertia of the spheres and their density (d)?
The antiseptics used for cuts and wounds in the human flesh have low surface tensions. Why?
If you compare the gravitational force on the earth due to the sun to that of due to the moon, you would find that the sun's pull is greater than the moon's pull. However, the tidal effect of the moon's pull is greater than the tidal effect of the sun. Why?
In Exercise, let us take the position of mass when the spring is unstreched as x = 0, and the direction from left to right as the positive direction of x-axis. Give x as a function of time t for the oscillating mass if at the moment we start the stopwatch (t = 0), the mass is:At the maximum stretched position.
In what way do these functions for SHM differ from each other, in frequency, in amplitude or the initial phase?