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When the wavelength of an incident radiation exceeds 560nm the emission of photoelectrons from a surface ceases.
What is the maximum energy of the electrons emitted when the surface is irradiated with. electromagnetic waves of wavelength 420nm?
What is the stopping potential for this electrons?
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An electric dipole consists of charges +2e and -2e separated by 0.78nm. It is in an electric field of strength 3.4 x 106 N/C. Calculate the magnitude of the torque on the dipole
Determine the Intelligence frequency, carrier frequency, Modulation index, Carrier power, total power in FM signal and power in each sideband.
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