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Light with a frequency of 7.5 x 1014 Hz is able to eject electrons from the metal surface of a photocell that has a threshold frequency of 5.2 x 1014 Hz. What stopping potential is required to stop the emitted photoelectrons?
working principle of a prism
I think it is same as the apex angle of the prism or the angle of the prism. since it decides the angle of deviation as i+e=D+A(angle of the prism),D=deviation.
One mole of an ideal gas at 0°C is compressed adiabatically reversibly to a pressure of 20 times its initial pressure. Evaluate the final temperature.(γ=1.4)
(i) A matter pulse is not electromagnetic in behavior. (ii) Practical observation of matter waves is possible only when the de-Broglie wavelength is of the order of the size of
What are the types of fibre optics?
An a.c. voltage E = E 0 sin cot is applied across an inductor L. Get an expression for current I. Draw a labelled diagram of Van de Graff generator. Verify its principle of wor
how to created physica assignment
law of successive disintegration in radioactivity
Why the velocity of light is limiting velocity of anything.
Question: Portray is a principal ray for the case of a concave lens. Where does it depart from here? Ans: In the situation of a diverging lens there is a ray that
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