Physics-
General
Easy
Question
The energy of a photon of wavelength 
is given by
The correct answer is:
Related Questions to study
Physics-
The de-Broglie wavelength of a neutron at 27°C is . What will be its wavelength at 927°C
The de-Broglie wavelength of a neutron at 27°C is . What will be its wavelength at 927°C
Physics-General
Physics-
A photon, an electron and a uranium nucleus all have the same wavelength. The one with the most energy
A photon, an electron and a uranium nucleus all have the same wavelength. The one with the most energy
Physics-General
Physics-
When cathode rays (tube voltage 
10 kV) collide with the anode of high atomic weight then we get
When cathode rays (tube voltage 10 kV) collide with the anode of high atomic weight then we get
Physics-General
Chemistry-
The quantum number not obtained from the Schrodinger’s wave equation is
The quantum number not obtained from the Schrodinger’s wave equation is
Chemistry-General
Chemistry-
The ratio of the electron in second excited state of He+ ion to the electron in the first excited state of Be3+ is
The ratio of the electron in second excited state of He+ ion to the electron in the first excited state of Be3+ is
Chemistry-General
Chemistry-
Which has maximum paramagnetic nature
Which has maximum paramagnetic nature
Chemistry-General
Physics-
The energy released in a typical nuclear fusion reaction is approximately
The energy released in a typical nuclear fusion reaction is approximately
Physics-General
Physics-
When neutrons are bombarded on nucleus of 
, the number of emitted neutrons will be
When neutrons are bombarded on nucleus of , the number of emitted neutrons will be
Physics-General
Physics-
A gamma ray photon creates an electron- positron pair. If the rest mass energy of an electron is 0.5 MeV and the total K.E. of the electron- positron pair is 0.78 MeV, then the energy of the gamma ray photon must be
A gamma ray photon creates an electron- positron pair. If the rest mass energy of an electron is 0.5 MeV and the total K.E. of the electron- positron pair is 0.78 MeV, then the energy of the gamma ray photon must be
Physics-General
Physics-
The mechanism of the hydrogen bomb is based on
The mechanism of the hydrogen bomb is based on
Physics-General
Physics-
Which of the following isotopes is normally fissionable ?
Which of the following isotopes is normally fissionable ?
Physics-General
Physics-
The mass defect in a particular nuclear reaction is 0.3 grams. The amount of energy liberated in kilowatt hours is
(Velocity of light = 
)
The mass defect in a particular nuclear reaction is 0.3 grams. The amount of energy liberated in kilowatt hours is
(Velocity of light = )
Physics-General
Physics-
The force acting between proton and proton inside the nucleus is
The force acting between proton and proton inside the nucleus is
Physics-General
Physics-
mesons can be
mesons can be
Physics-General
Physics-
Nucleus of an atom whose atomic mass is 24 consists of
Nucleus of an atom whose atomic mass is 24 consists of
Physics-General
