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A silver ball of radius 4.8 cm is suspended by a thread in a vacuum chamber. Ultraviolet light of wavelength 200 nm is incident on the ball for some time during which a total light A silver ball of radius 4.8 cm is suspended by a thread in a vacuum chamber. Ultraviolet light of wavelength [...]

A totally reflecting, small plane mirror placed horizontally faces a parallel beam of light as shown in the figure. The mass of the mirror is 20 g. Assume that there is no absorption in the lens and that A totally reflecting small plane mirror placed horizontally faces a parallel beam of light as shown in [...]

A parallel beam of monochromatic light of wavelength 663 nm is incident on a totally reflecting plane mirror. The angle of incidence is 60 and the number of photons striking the mirror A parallel beam of monochromatic light of wavelength 663 nm is incident on a totally reflecting plane mirror. The angle of incidence is [...]

A monochromatic source of light operation at 200 W emits 4 * 10^20 photons per second. Find the wavelength of the light ( in * 10^-7 m) A monochromatic source of light operation at 200 W emits 4 * 10^20 photons per second. Find the wavelength of the light ( in * 10^-7 m) October [...]

An element of atomic number 9 emits K alpha X-ray of wavelength lemda. Find the atomic number of the element which emits K alpha X-ray of wavelength 4 lemda. An element of atomic number 9 emits K alpha X-ray of wavelength lemda. Find the atomic number of the element which emits K alpha X-ray of [...]

The de-Broglie wavelength of an electron moving with a velocity of 1.5 * 10^8 m/s is equal to that of a photon. Find the ratio of the kinetic energy of the photon to that of the electron. The de-Broglie wavelength of an electron moving with a velocity of 1.5 * 10^8 m/s is equal to [...]

The radius of an alpha particle moving in a circle in a constant magnetic field is half of the radius of an electron moving in circular path in the same field. The de Broglie wavelength of The radius of an alpha particle moving in a circle in a constant magnetic field is half of the [...]

In Column 1, the nature of light is given and in Column 2 the information about the photons are mentioned. Match the entries of Column 1 with the entries of Column 2. in column 1 the nature of light is given and in Column 2 the information about the photons are mentioned. Match the entries [...]

In the shown experimental setup to study photoelectric effect, two conducting electrodes are enclosed in an evacuated glass-tube as shown. A parallel beam of monochromatic light falls In the shown experimental setup to study photoelectric effect two conducting electrodes are enclosed in an evacuated glass-tube as shown. A parallel beam of monochromatic light falls October [...]

Related to photoelectric effect, in Column 1, some physical quantities change while in Colunm 2 effects of these changes are given. Match the entries of Column 1 with the entries of Column 2. in Colunm 1 Related to photoelectric effect some physical quantities change while in Colunm 2 effects of these changes are given. Match [...]