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1 BOT =3.6xx J....

1 BOT `=3.6xx`___________ J.

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1BOT = ____Joule?

If the value of ("lim")_(nvecoo)(n^(-3/2))dotsum_(j=1)^(6n)sqrt(j) is equal to sqrt(N) then the value of N/(8) is __________

Calculate the wave length of wave associated -with an electron moving with the velocity 1.55 xx 10^6 ms^(-1) [h = 6.63 xx 10^(-34) J.S , m_e = 9.109 xx 10^(-31) kg] .

Calculate the momentum of a photon of frequency 5 xx 10^(13) Hz .Given, h = 6.6 xx 10^(-34)J.s and c = 3 xx 10^(8) m.s^(-1)

When ultraviolet rays of wavelength 620 Å is incident on a hydrogen atom in the ground state, its electron is emitted with a velocity of 1.5 xx10^(6) m *s^(-1) . What is the ionisation energy of hydrogen ? Given , h= 6.625xx10^(-34)J *s , mass of electron = 9.1 xx 10^(-31)kg, c=3xx 10^(8)m*s^(-1) and 1 eV=1.6xx 10^(-19)J .

If the mass of neutron is 1.7xx10^(-27) kg , then the de Broglie wavelength of neutron of energy 3eV is (h = 6.6xx10^(-34) J.s)

The stopping potential any material is 1.4Volt.What will its threshold wavelength if the value of incident radiation is 5.6 eV. . [h = 6 .63 xx 10^(-34) Js, C= 3 xx 10^8 m//s, eV = 1.6 xx 10^(-19) J] .

Find out the photoelectric threshold wavelength of copper. Given work function of copper = 4.52eV, h = 6.6 xx 10^(-34)J.s, 1 eV = 1.6 xx 10^(-19)J

Find de Broglie wavelength of neutron at 127^(@)C Given, Boltzmann constant, k = 1.38 xx 10^(-23) J.mol^(-1).K^(-1) , Planck's constant, h = 6.626 xx 10^(-34)J.s , mass of neutron, m = 1.66 xx 10^(-27) kg

A metal has a work function of 2eV. It is illuminated by monochromatic light of wavelength 500 nm, calculate (i) the threshold wavelength, (ii) the maximum energy of photoelectrons, (iii) The stopping potential. Given Planck's constant h = 6.6 xx 10^(-34)J.s , charge on electron e = 1.6 xx 10^(-19) C and 1eV = 1.6 xx 10^(-19)J