Unit - 1.1 States of Matter On The Basis of Kinetic Theory Of Matter — PHYSICS STD 8 — Question

A charged body is held near the disc of positively charged GLE. It is found that leaves of GLE diverge more. The nature of charge on the charged body is:

In case of electronic current the charge flows from negatively charged body to the positively charged body. The body which is at higher potential is:

A thick glass tumble cracks when boiling hot water is poured into it because :

When an ebonite rod is rubbed with cat’s skin, the cat’s skin develops a charge which is:

The pitch of sound does not depend upon

An object is between the principal focus and the center of curvature of a concave mirror, the image formed is real and:

The type of thermal expansion that takes place in gases is

All wires used in electric circuits should be covered with

In coastal regions the density of air above sea, during night is :