List of top Physics Questions

Write Bio-Savart expansion in vector form.
OR
Why there is no end point of magnetic field lines?
What is isotopes? Write any two isotopes of hydrogen atom.
OR
What is Isobar? Give example.
Write answer of each question in one sentence: Give relations between energy and frequency of a radiation.
What is Photoelectric effect? Write Einstein's photoelectric equation.
OR
What is de-broglie matter wave? Write de-broglie wave relation.
Write answer of each question in one sentence: What is diffraction?
Write answer of each question in one sentence: What is direction of magnetic dipole moment of a magnet?
Write answer of each question in one sentence: What is threshold frequency?
Write True or False:
Working of microwave oven is based on Radio wave.
Write answer of each question in one sentence: How Galvanometer is changed in a voltmeter?
Write answer of each question in one sentence: What is the unit of power of lens?
Write True or False:
The average power supplied to an inductor over one complete cycle is zero.
Write True or False:
In an intrinsic semiconductor the number of free electrons is equal to the number of holes.
Write True or False:
Infrared radiation is invented by scientist Retar.
Write True or False:
Atom is a positive particle.
Write True or False:
De-broglie waves are an electromagnetic wave.
Write True or False:
Voltmeter is more superior to potentiometer.
The \(\underline{\hspace{3cm}}\) of the galvanometer is reduced by the use of shunt.
Magnetic field is a \(\underline{\hspace{3cm}}\) quantity.
The frequency of a Direct Current is \(\underline{\hspace{3cm}}\).
The velocity of light \(\underline{\hspace{3cm}}\) when it goes to rare medium to denser.
The ohmic resistance of an ideal inductance is \(\underline{\hspace{3cm}}\).
Electromagnetic wave of highest frequency is \(\underline{\hspace{3cm}}\).
The focal length of eye piece in telescope \(\underline{\hspace{3cm}}\) the focal length of the objective.
The frequency of the light wave is order of \(\underline{\hspace{3cm}}\).
Forbidden energy gap for Germanium semiconductor is -