List of top Physics Questions

Soft iron is preferred as the core of transformers due to its :

Sodium and copper have work functions 2.3 eV and 4.5 eV respectively. Then, the ratio of their threshold wavelengths is nearest to

Skeletal muscle fibre has light and dark bands. Which his correct match of protein with its light refractive property and colour $\quad$Protein$\quad$$\quad$$\quad$ Colour $\quad$$\quad$$\quad$Property

SI Unit of a physical quantity whose dimensional formula is $m^{-1}L^{-2}A^2$ is

SI unit of Coefficient of viscosity is

Select the question having the answer as 'Yes'? (1) can a dimensional quantity be unitless ? (2) can a quantity having units be dimensionless ? (3) can a quantity have different dimensions in different sy stems of units ? (4) can the magnitude of a quantity be different in different systems of units ?

Same current ''i'' is flowing in three infinitely long wire along positive x, y and z directions. The magnetic field-at a point (0,0-a) would be

Red shift is an illustration of

Rectifier converts:

Real expansion of liquid is

Ratio of isothermal elasticity of gas to the adiabatic elasticity is

Rate of effusion of LPG (a mixture of n-butanemole fraction of n-butane in LPG is

Radioactivity is the phenomenon associated with

Rain drops fall with terminal velocity due to

Radioactive disintegration is an example of

Radio waves of constant amplitude can be generated with

Quantity that remains unchanged in a transformer is

Quality of sound primarily depends upon

Quality factor and power factor both have the dimensions of

Pure silicon and germanium behave as

Pressure gradient has the same dimensions as that of

Pressure is a scalar quantity because

Pressure applied to an enclosed fluid is transmitted undiminished to every point of the fluid and the walls of containing vessel. This law was first formulated by

Pressure at a point inside a liquid does not depend on

Preferable devices used to measure distance of $10^0 m$, $10^{-3.5} m$ and $10^{-5}m$ are