Question
Which of the following statement is/are true?
>I. The materials which allow heat to pass through them easily are conductors of heat. II. The materials which do not allow heat to pass through them easily are called insulators.Solution
The objects which allow heat to pass through them are called good conductors of heat. An insulator is a material that does not allow a transfer of electricity or heat energy.
A dipole with moment p = 2i + 3j - 4k is placed at A(2, −3, 1). Find the electric potential at point B(4, −1, 0) in volts. (Use 1/(4 π ε0) = 9 × ...
Hyperrnetropia or longsight can be corrected by using :
Rain drops acquire spherical shape due to -
The mass and energy equivalent to 1 a.m.u. respectively are -
An object is projected vertically upward from Earth's surface with speedÂ
v 0 = √(GM/1.5R). The maximum height reached from the center of E...
The kinetic energy of a body is directly proportional to — Â
Tape recorder should not be kept near one of the following things –
A force of 50 N moves a body 2 meters in the direction of the force. Find work done. Â
The weight (W) of a body is derived from which formula?
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