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A microphone is attached to a spring that is suspended from the ceiling. Directly below on the floor is a stationary 440 Hzsource of sound. The microphone vibrates up and down in simple harmonic motion with a period of 2.0 s. The difference between the maximum and minimum sound frequencies detected by the microphone is 2.1 Hz. Ignoring any reflections of sound in the room and using 343 m/s for the speed of sound, determine the amplitude of the simple harmonic motion
explain about population of impurity levels
An element exists in two solid phases (labelled P1 and P2). The standard molar entropies of P1 and P2 are 21.9 J mol -1 K -1 and 23.3 J mol -1 K -1 respectively. The
The density of neutrons is of the order: (1)10 3 kg/ cc (2)10 6 kg/cc (3)10 9 kg/cc (4) 10 11 kg/cc Ans:(4) 10 11 kg/cc
Semi Conductors: Substance which are neither good Conductor, like metals nor very bad conductors like non metals are known as Semi conductors Examples of such substances are si
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
Q. What is Maser? Give the principle of it. 1) The term MASER for Microwave Amplification through Stimulated Emission of Radiation. 2) The working of maser is similar to th
Q. A person with a normal near point (25cm) using a compound microscope with objective of focal length 8.0mmandan eye piece of focal length 2.5cm can bring an object placed at 9.0m
current gam relashionship betweem alpha and betta
Give a mathematical expression for linear width of principal maxima in case of single slit Fraunhofer diffraction.
Q. Explain Snells Law? It is believed that Snell developed his well-known equation by purely empirical means. He made various measurements of the refracting properties of vario
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