An `alpha` - [article moving with velocity `(1)/(30)` th times of velvelocity of light. If unceratinty in po9sition is `(3.31)/(pi)` pm, then minmum unceratinty in kinetic energy is `yxx10^(-16)` J. Calculate the value of y.

A hot metal emits photons of light with energy 3.0 xx 10^(-19) J . Calculate the frequency and wavelength of the photon?

A hot metal emits photons of light with energy 3.0 xx 10^(-19) J . Calculate the frequency and wavelength of the photon?

A beam of alpha particle moves with a velocity of 3.28 xx 10^(3) m s^(-1) Calculate the wavelength of the alpha particles.

The potential energy of a particle is determined by the expression U=alpha(x^(2)+y^(2)) , where alpha is a positive constant. The particle begins to move from a point with the co-ordinates (3, 3) only under the action of potential fields force. When it reaches the point (1, 1) its kinetic energy is 4 Kalpha . Find the value of K.

If a metal is irradiated with light of frequency 3 xx 10^(19) sec^(-1) , electron is emitted with kinetic energy of 6.625 xx 10^(-15)J . The threshold frequency of the metal is

The kinetic energy of an electron is 4.55 xx 10^(-25) J .The mass of electron is 9.1 xx 10^(-34) kg . Calculate velocity of the electron.

In a photoelectric effect experiment irradiation of a metal with light of frequency 5.2 xx 10^(14) s^(-1) yields elctrons with maximum kinetic ennergy 1.3 xx 10^(-19) J .Calculate the threshold frequency (v_(0)) for the metal

The de - Broglie wavelength of a particle moving with a velocity 2.25 xx 10^(8) m//s is equal to the wavelength of photon. The ratio of kinetic energy of the particle to the energy of the photon is (velocity of light is 3 xx 10^(8) m//s

A particle having a charge + 3 xx 10^(-9 )C is placed in a uniform electric field directed toward left. It is released from rest and moves a distance of 5 cm after which its kinetic energy is found to be 4.5 xx 10^(-5) J . (a) Calcnalate the work done by the electrical force on the particle (b) Calculate the magnitude of the electric field. (c) Calculate the potential of starting point with respect to the end point of particle's motion.

The mass of an electron is 9. 1 xx 10^(-31) kg . If its K.E. is 3. 0 xx 10 ^(25) J . Calculate its wavelength .