NEET Last 32 Years Solved 1988 – 2019 Physics and Chemistry Video Solutions
Sahay Sir > Question Answers > NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions
Electrons of mass with de-Broglie wavelength λ fall on the target in an X-ray tube.The cut off wavelength (λ0) of the emitted X-rays is
21
Aug
Electrons of mass with de-Broglie wavelength λ fall on the target in an X-ray tube.The cut off wavelength (λ0) of the emitted X-rays is Electrons of mass with de-Broglie wavelength λ fall on the target in an X-ray tube.The cut off wavelength (λ0) of the emitted X-rays is August 21, 2020 Category: Chapter 29 - [...]
An electron of mass m and a photon have same energy E. The ratio of de-Broglie wavelengths associated with them is :
21
Aug
An electron of mass m and a photon have same energy E. The ratio of de-Broglie wavelengths associated with them is : An electron of mass m and a photon have same energy E. The ratio of de-Broglie wavelengths associated with them is August 21, 2020 Category: Chapter 29 - Dual Nature of Matter and [...]
The de-Broglie wavelength of neutrons in thermal equilibrium with heavy water at a temperature T ( Kelvin ) and a mass m, is
21
Aug
The de-Broglie wavelength of neutrons in thermal equilibrium with heavy water at a temperature T ( Kelvin ) and a mass m, is is The de-Broglie wavelength of neutrons in thermal equilibrium with heavy water at a temperature T ( Kelvin ) and a mass m August 21, 2020 Category: Chapter 29 - Dual Nature [...]
The work function of a photosensitive material is 4.0 eV. The longest wavelength of light that can cause photon emission from the substance is (approximately)
21
Aug
The work function of a photosensitive material is 4.0 eV. The longest wavelength of light that can cause photon emission from the substance is (approximately) The work function of a photosensitive material is 4.0 eV. The longest wavelength of light that can cause photon emission from the substance is (approximately) August 21, 2020 Category: Chapter [...]
The work function for metals A,B and C are respectively 1.92 eV, 2.0 eV and 5 eV. According to Einstein’s equation , the metals which will emit photoelectrons for a radiation of wavelength 4100 Å are
21
Aug
The work function for metals A,B and C are respectively 1.92 eV, 2.0 eV and 5 eV. According to Einstein’s equation , the metals which will emit photoelectrons for a radiation of wavelength 4100 Å are 2.0 eV and 5 eV. According to Einstein's equation B and C are respectively 1.92 eV the metals which [...]
A photosensitive metallic surfaces has work function h v0 . If photon of 2hv0 fall on the surface ,the electrons come out with a maxiumum velocity of 4 × 10^6 m/s . If energy of photon is increased to 5 hv0 , the maximum velocity of photoelectrons will be :
21
Aug
A photosensitive metallic surfaces has work function h v0 . If photon of 2hv0 fall on the surface ,the electrons come out with a maxiumum velocity of 4 × 10^6 m/s . If energy of photon is increased to 5 hv0 , the maximum velocity of photoelectrons will be : A photosensitive metallic surfaces has [...]
A photocell employs photoelectric effect to convert
21
Aug
A photocell employs photoelectric effect to convert A photocell employs photoelectric effect to convert August 21, 2020 Category: Chapter 29 - Dual Nature of Matter and Radiation , NEET Last 32 Years Solved 1988 - 2019 Physics and Chemistry Video Solutions , Physics ,
A 5 W source emits monochromatic light of wavelength 5000Å. When placed 0.5m 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
21
Aug
A 5 W source emits monochromatic light of wavelength 5000Å. When placed 0.5m 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 A 5 W source emits monochromatic light of [...]
The work function of a surface of a photosensitive material is 6.2 eV. The wavelength of the incident radiation for which the stopping potential is 5 V lies in the
21
Aug
The work function of a surface of a photosensitive material is 6.2 eV. The wavelength of the incident radiation for which the stopping potential is 5 V lies in the The work function of a surface of a photosensitive material is 6.2 eV. The wavelength of the incident radiation for which the stopping potential is [...]
The figure shows a plot of photo current versus anode potential for a photo sensitive surface for three different radiations. Which one of the following is a correct statement ?
21
Aug
The figure shows a plot of photo current versus anode potential for a photo sensitive surface for three different radiations. Which one of the following is a correct statement ? The figure shows a plot of photo current versus anode potential for a photo sensitive surface for three different radiations. Which one of the following [...]