Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions)
(a) A stopping potential of 0.82 V is required to stop the emission of photoelectrons from the surface of a metal by light of wavelength 4000 A. For light of wavelength 3000 A, the stopping potential
11
Sep
(a) A stopping potential of 0.82 V is required to stop the emission of photoelectrons from the surface of a metal by light of wavelength 4000 A. For light of wavelength 3000 A, the stopping potential (a) A stopping potential of 0.82 V is required to stop the emission of photoelectrons from the surface of [...]
At the same instant, the magnitude of the potential difference in volts across the ac source will be
11
Sep
At the same instant, the magnitude of the potential difference in volts across the ac source will be At the same instant the magnitude of the potential difference in volts across the ac source will be September 11, 2020 Category: Uncategorised (JEE Advanced Physics by BM Sharma + GMP Solutions) ,
Light of wavelength of 2000 A falls on an aluminium surface. In aluminium, 4.2 eV are required to remove an electron from its surface. What is the kinetic energy, in electron volt, of (a) the fastest, and (b) the slowest
11
Sep
Light of wavelength of 2000 A falls on an aluminium surface. In aluminium, 4.2 eV are required to remove an electron from its surface. What is the kinetic energy, in electron volt, of (a) the fastest, and (b) the slowest 4.2 eV are required to remove an electron from its surface. What is the kinetic [...]
a series L-R circuit, connected with a sinusoidal ac source, the maximum potential difference across L and R are respectivaly 3 volts and 4 volts. At an instant the potemtial difference across resistor is 2 volts. The potential difference in volt, across the inductor at the same instant will be:
11
Sep
a series L-R circuit, connected with a sinusoidal ac source, the maximum potential difference across L and R are respectivaly 3 volts and 4 volts. At an instant the potemtial difference across resistor is 2 volts. The potential difference in volt, across the inductor at the same instant will be: a series L-R circuit across [...]
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a series L-R circuit ,
across the inductor at the same instant will be: ,
connected with a sinusoidal ac source ,
the maximum potential difference across L and R are respectivaly 3 volts and 4 volts. At an instant the potemtial difference across resistor is 2 volts. The potential difference in volt ,
Find the frequency of light which ejects electrons from a metal surface. Fully stopped by a retarding potential of 3 V, the photoelectric effect begins in this metal at a frequency of
11
Sep
Find the frequency of light which ejects electrons from a metal surface. Fully stopped by a retarding potential of 3 V, the photoelectric effect begins in this metal at a frequency of Find the frequency of light which ejects electrons from a metal surface. Fully stopped by a retarding potential of 3 V the photoelectric [...]
When a beam of 10.6 eV photons of intensity 2.0 Wm^-2 falls on a platinum surface of area 1.0 * 10^-4m^2 and work function 5.6 eV, 0.53% of the incident photons ejects photoelectrons.
11
Sep
When a beam of 10.6 eV photons of intensity 2.0 Wm^-2 falls on a platinum surface of area 1.0 * 10^-4m^2 and work function 5.6 eV, 0.53% of the incident photons ejects photoelectrons. 0.53% of the incident photons ejects photoelectrons. When a beam of 10.6 eV photons of intensity 2.0 Wm^-2 falls on a platinum [...]
A resisor R, an inductor L and a capaticance C are connected in series to an osciallator of frequency n. If the resonant frequency is nr, then the current lags behind voltage, when
11
Sep
A resisor R, an inductor L and a capaticance C are connected in series to an osciallator of frequency n. If the resonant frequency is nr, then the current lags behind voltage, when A resisor R an inductor L and a capaticance C are connected in series to an osciallator of frequency n. If the [...]
Following figure shows an AC generator to a “block box” through a pair of terminals.The box contains possible R,L,C or their combination, whose elements and arrangements are not known to us. Measurements, outside the box reveals that e = 75 sin(ωt)volts, i=1.5 sin (ωt+45∘) amp then. the wrong statements is
11
Sep
Following figure shows an AC generator to a “block box” through a pair of terminals.The box contains possible R,L,C or their combination, whose elements and arrangements are not known to us. Measurements, outside the box reveals that e = 75 sin(ωt)volts, i=1.5 sin (ωt+45∘) amp then. the wrong statements is C or their combination Following [...]
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C or their combination ,
Following figure shows an AC generator to a "block box" through a pair of terminals.The box contains possible R ,
i=1.5 sin (ωt+45∘) amp then. the wrong statements is ,
L ,
outside the box reveals that e = 75 sin(ωt)volts ,
whose elements and arrangements are not known to us. Measurements ,
In a photocell the plates P and Q havd a separation of 10 cm, which are connected through a galvanometer without any cell. Bichromatic light of wavelengths 4000 A and 6000 A are incident on
11
Sep
In a photocell the plates P and Q havd a separation of 10 cm, which are connected through a galvanometer without any cell. Bichromatic light of wavelengths 4000 A and 6000 A are incident on In a photocell the plates P and Q havd a separation of 10 cm which are connected through a galvanometer [...]
X-rays of wavelength lemda fall on photo-sensitive surface, emitting electrons. Assuming that the work function of the surface can be neglected. Find the de-Broglie wavelength of electrons emitted.
11
Sep
X-rays of wavelength lemda fall on photo-sensitive surface, emitting electrons. Assuming that the work function of the surface can be neglected. Find the de-Broglie wavelength of electrons emitted. emitting electrons. Assuming that the work function of the surface can be neglected. Find the de-Broglie wavelength of electrons emitted. X-rays of wavelength lemda fall on photo-sensitive [...]