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HSC Science (Computer Science) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions for Physics

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Physics
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The electrons are emitted in the photoelectric effect from a metal surface.

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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As the intensity of incident light increases ______ 

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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The maximum kinetic energy of the photoelectrons depends only on ______ 

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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Planck's constant is 6.6 × 10-34 Js. The momentum of each photon is given radiation Is 3.3 × 10-29 kg/s. The λ of radiation is ______.

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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Define photoelectric effect. 

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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The minimum frequency for photoelectric effect on metal is 7 × 1014 Hz, Find the work function of the metal. 

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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Find the kinetic energy of the emitted electron, if in photoelectric effect energy of incident Photon is 4 eV and work function is 2.4 eV. 

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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Find the energy of photon which have momentum 2 × 10-16 gm-cm/sec.  

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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Draw a neat labelled diagram of a schematic of the experimental setup for the photoelectric effect. 

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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Explain the concept of the photoelectric effect. 

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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If the total energy of radiation of frequency 1014 Hz is 6.63 J, Calculate the number of photons in the radiation. 

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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State Einstein photoelectric equation. 

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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With the help of a circuit diagram describing an experiment to study the photoelectric effect.

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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What is the photoelectric effect? Define stopping potential and photoelectric work function. 

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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The energy of a photon is 2 eV. Find its frequency and wavelength.  

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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The work function of a surface is 3.1 eV. A photon of frequency 1 × 1015 Hz. Is an incident on it. Calculate the incident wavelength is photoelectric emission occurs or not.   

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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State Einstein’s photoelectric equation. Explain all characteristics of the photoelectric effect, on the basis of Einstein’s photoelectric equation.  

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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With the help of a circuit diagram describe the experiment to study the characteristics of the photoelectric effect. Hence discuss any 2 characteristics of the photoelectric effect.  

[14] Dual Nature of Radiation and Matter
Chapter: [14] Dual Nature of Radiation and Matter
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Draw the circuit diagram of a half-wave rectifier. Hence explain its working. 

[16] Semiconductor Devices
Chapter: [16] Semiconductor Devices
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Draw a neat labelled circuit diagram of a full-wave rectifier using a semiconductor diode.

[16] Semiconductor Devices
Chapter: [16] Semiconductor Devices
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