Tag: Physics MCQ

Capacitance MCQs with Answers

Capacitance MCQs Capacity of capacitor is depends upon the magnitude of charge and the potential difference applied the plates of capacitor. The charge on conductor increases the potential of conductor.  It is found that Q ∝ V Q = CV Where ‘C’ is constant called capacity or capacitance of conductor. C = Q/V Capacity of […]

Bulk Modulus MCQs with Answers

Bulk Modulus MCQs The modulus of elasticity related to a change in the volume is bulk modulus (k). Let volume V is subjected to an additional pressure dP, The increase in pressure will produce a decrease in its volume dV. ∴ Volume stress = Change in pressure = dP Bulk modulus is defined as the […]

Brackett Series MCQs with Answers

Brackett Series MCQs According to Bohr’s 3rd postulate, during transition of electrons from the orbits of higher energy to orbits of lower energy, it radiates the energy. The radiated energy is equivalent to the difference of energy levels between two corresponding orbits. Brackettseries arises due to transitions of electron from different higher orbits to the […]

Bohr’s Atomic Model MCQs with Answers

Bohr’s Atomic Model MCQs Sir Neil Bohr studied the hydrogen atom and describes the most modern structure of atom in his postulates. He suggested that the negatively charged electron revolves around the positively charged nucleus in circular orbit due to presence of electrostatic force of attraction between the positively charged nucleus and negatively charged electrons. […]

Black body radiation MCQs with Answers

Black body radiation MCQs Lummer and Pringsheim performed experiments in 1899, to study the distribution of energy with the wavelength in spectrum of black body radiations. The intensity of black body radiations corresponding to wavelength ranging from zero to infinity is measured and plotted at various temperatures of black body. The intensity verses wavelength graph […]

Black body MCQs with Answers

Black body MCQs A body which absorbs all the heat radiations incident on its surface is called as perfectly black body. In practice the perfectly black body can be not be constructed. But the lamp black or the platinum black can be consider as a perfectly black body as they absorbs more than 98 % […]

Beta Particles MCQs with Answers

Beta Particles MCQs β -rays are fast moving electrons from nucleus. Nucleus emits an electron by converting a neutron in the nucleus into proton. Hence the basic equation which can represent the beta decay can be written as, n → p + e– + antineutrino Neutrino and antineutrino are particles with very less mass and […]

Basic force MCQs with Answers

Basic force MCQs The physical quantity can changes the state of a object from rest to motion or vice versa is called as Force. The whole universe is balanced by four basic forces known as fundamental forces viz; 1. Gravitational force: The force by which the object gets attracted towards the centre of Earth is […]

Balmer Series MCQs with Answers

Balmer Series MCQs According to Bohr’s 3rd postulate, during transition of electrons from the orbits of higher energy to orbits of lower energy, it radiates the energy. The radiated energy is equivalent to the difference of energy levels between two corresponding orbits. This theory was explained in detailed by Balmer, when he studied the energy […]

Atomic Number MCQs with Answers

Atomic Number MCQs Sir Earnest Rutherford explained in his scattering experiment that the structure of atom is similar to that of structure of galaxy. Atom consists of central core called nucleus. The maximum mass of atom about 99.99% is concentrated at nucleus. The nucleus is positively charged core due to presence of protons in it. […]