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When an orchestra is tuning up, the first violinist plays a note at 256 Hz. a. What is the wavelength of that sound wave if the speed of sound in the concert hall is 340 m/s?
Q. How much should be the voltage of an X-ray tube so that the electrons emitted from the cathode may give an X-ray of wavelength 1 A o after striking the target? λmin = 124
State Kirchhoff's rules of current distribution in an electrical network. Using these rules verify the value of the current in the electric circuit given below.
Dalton's law of partial pressures (J. Dalton) The overall pressure of a mixture of ideal gases is equivalent to the total of the partial pressures of its components; i.e., the
when an object is dropped, what is its acceleration at the moment of release? Explain with reasoning.
Draw the phasor diagram for an ideal transformer on no-load. (a) A 500 V/100V, single-phase transformer takes a full load primary current of 4A. Neglecting losses, Verify
Emission spectrum of hidrogen is different from emission spectrum of sodium.Why? Ans) Because, in sodium atom there are already many other electrons present in the atom aother than
A single turn coil of radius 5cm is placed on a plane paper and magnetic flux, directed perpendicularly out of the paper changes according to φ = 11t 2 + 7t + 15. Determine the ma
‘q' is a path function. Under what situations it will be a state function? Define and illustrate heterogeneous and homogenous systems with examples.
how is the image formed on the retina?
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