357697 The light of wavelength \(\lambda\) incident on the surface of metal having work function \(\phi\) emits the electrons. The maximum velocity of electrons emitted is [ \(c = \) velocity of light, \(h = \) planck's constant, \(m = \) mass of electron]
357698 A \(5\;W\) source emits monochromatic light of wavelength \(5000\mathop A\limits^o \). When placed \(0.5\;m\) away, it liberates photoelectrons from a photosensitive metallic surface. When the source is moved to a distance of \(1.0\;m\), the number of photoelectrons liberated will be reduced by a factor of
357699 If the maximum kinetic energy of emitted electrons in photoelectric effect is \(3.2 \times {10^{ - 19}}\;J\) and the work - function for metal is \(6.63 \times {10^{ - 19}}\;J\), then the stopping potential and threshold wavelength respectively are [ planck's constant \( h = 6.63 \times {10^{34}}\;J - s\) [velocity of light \(c = 3 \times {10^8}\frac{m}{s}\), ] [charge of electron \(\left. { = 1.6 \times {{10}^{ - 19}}C} \right]\)
357697 The light of wavelength \(\lambda\) incident on the surface of metal having work function \(\phi\) emits the electrons. The maximum velocity of electrons emitted is [ \(c = \) velocity of light, \(h = \) planck's constant, \(m = \) mass of electron]
357698 A \(5\;W\) source emits monochromatic light of wavelength \(5000\mathop A\limits^o \). When placed \(0.5\;m\) away, it liberates photoelectrons from a photosensitive metallic surface. When the source is moved to a distance of \(1.0\;m\), the number of photoelectrons liberated will be reduced by a factor of
357699 If the maximum kinetic energy of emitted electrons in photoelectric effect is \(3.2 \times {10^{ - 19}}\;J\) and the work - function for metal is \(6.63 \times {10^{ - 19}}\;J\), then the stopping potential and threshold wavelength respectively are [ planck's constant \( h = 6.63 \times {10^{34}}\;J - s\) [velocity of light \(c = 3 \times {10^8}\frac{m}{s}\), ] [charge of electron \(\left. { = 1.6 \times {{10}^{ - 19}}C} \right]\)
357697 The light of wavelength \(\lambda\) incident on the surface of metal having work function \(\phi\) emits the electrons. The maximum velocity of electrons emitted is [ \(c = \) velocity of light, \(h = \) planck's constant, \(m = \) mass of electron]
357698 A \(5\;W\) source emits monochromatic light of wavelength \(5000\mathop A\limits^o \). When placed \(0.5\;m\) away, it liberates photoelectrons from a photosensitive metallic surface. When the source is moved to a distance of \(1.0\;m\), the number of photoelectrons liberated will be reduced by a factor of
357699 If the maximum kinetic energy of emitted electrons in photoelectric effect is \(3.2 \times {10^{ - 19}}\;J\) and the work - function for metal is \(6.63 \times {10^{ - 19}}\;J\), then the stopping potential and threshold wavelength respectively are [ planck's constant \( h = 6.63 \times {10^{34}}\;J - s\) [velocity of light \(c = 3 \times {10^8}\frac{m}{s}\), ] [charge of electron \(\left. { = 1.6 \times {{10}^{ - 19}}C} \right]\)
357697 The light of wavelength \(\lambda\) incident on the surface of metal having work function \(\phi\) emits the electrons. The maximum velocity of electrons emitted is [ \(c = \) velocity of light, \(h = \) planck's constant, \(m = \) mass of electron]
357698 A \(5\;W\) source emits monochromatic light of wavelength \(5000\mathop A\limits^o \). When placed \(0.5\;m\) away, it liberates photoelectrons from a photosensitive metallic surface. When the source is moved to a distance of \(1.0\;m\), the number of photoelectrons liberated will be reduced by a factor of
357699 If the maximum kinetic energy of emitted electrons in photoelectric effect is \(3.2 \times {10^{ - 19}}\;J\) and the work - function for metal is \(6.63 \times {10^{ - 19}}\;J\), then the stopping potential and threshold wavelength respectively are [ planck's constant \( h = 6.63 \times {10^{34}}\;J - s\) [velocity of light \(c = 3 \times {10^8}\frac{m}{s}\), ] [charge of electron \(\left. { = 1.6 \times {{10}^{ - 19}}C} \right]\)