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Define the terms threshold frequency and stopping potential in relation to the phenomenon of photoelectric effect. How is the photoelectric current affected on enhancing the
(i) frequency
(ii) intensity of the incident radiations and why?
The differential equation of motion of freely oscillating body is given by 2 d 2 x/dt 2 + 8π 2 x = 0. Evaluate the natural frequency of the body?
what are the advantage and disadvantages of light reflections
A football player kicks a field goal from a distance of 45 m from the goalpost. The football is launched at a 35° angle above the horizontal. What initial velocity is neede
Q. Compare the emf and the potential difference . Comparison of emf and potential difference 1. The difference of potentials among the two terminals of a cell in an open cir
please explain newtons first law of motion
Explain physically how a p-n junction functions as a rectifier. Ans: When a P-N junction diode is forward-biased and applied voltage is increased from zero, hardly any current
what is retardation
true or false. All radioactive elements have been synthesized
give me a very detailed exlanation of finding d Constraint relaion in strings and how do u find it do set a reference point from which u start taking d Velocities/Accelerations d f
what is the wavelength of a candle flame
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