Q1PhysicsUnit 17: Dual Nature of Matter and Radiation
The incident photon involved in the photo-electric effect experiment
Physics · JEE
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Subtopics in Dual Nature of Matter and Radiation
- Dual nature of radiation, Photoelectric effect, Hertz and Lenard's observations
- Einstein's photoelectric equation, particle nature of light
- Matter waves: wave nature of particle, de-Broglie relation
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Q2PhysicsUnit 17: Dual Nature of Matter and Radiation
The work function of a substance is
4.0 . The longest wavelength of light that can cause photo-electric emission from this substance is approximately
Q3PhysicsUnit 17: Dual Nature of Matter and Radiation
The sensor is exposed for to a
lamp away. The sensor has opening that is 20 mm in a diameter
How many photons enter the sensor if the wavelength of light is 600 mm? (assume that all the energy of the lamp is given off as light).
Q4PhysicsUnit 17: Dual Nature of Matter and Radiation
The photoelectric effect proves that light consists of:
Q5PhysicsUnit 17: Dual Nature of Matter and Radiation
Work function is
Q6PhysicsUnit 17: Dual Nature of Matter and Radiation
The energy that should be added to an electron to reduce its de-Broglie wavelength from 1 nm to 0.5 nm is.
Q7PhysicsUnit 17: Dual Nature of Matter and Radiation
Assertion
Mass of moving photon varies inversely as the wavelength.
Reason
Energy of the particle Mass (speed
of light)
Q8PhysicsUnit 17: Dual Nature of Matter and Radiation
In a photoelectric effect, the anode
potential is plotted against the plate
current
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