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What do you understand by reverberation? Who is the founder of architectural acoustics?
What is Newton's formula for velocity of sound in a gas? How is it corrected by Laplace?
Explain the Photoelectric Effect Atomic Models Heinrich Hertz first observed the photoelectric effect in 1887. He noticed that if a photon with enough energy is absorbed by an
torque
what is necol prism and give construction and working
Gauss' law (K.F. Gauss): The electric flux by a closed surface is proportional to the algebraic sum of electric charges contained in that closed surface; in differential form,
Noise: An undesirable and unpleasant sound that makes harmful effects on our auditory system is known as noise.
A 105-N suitcase sits on a rubber ramp at an airport carousel at a 25° angle. The weight vector can be broken into two perpendicular components. a. What is the magnitude of the
Coulomb's law (C. de Coulomb) The primary law for electrostatics is analogues to Newton's law of universal gravitation. This states that the force among two point charges is p
for small values of theta sine theta is equal to tan theta . how?
The nucleus of the element having atomic number 25 and atomic weight 55 will contain : (1 )25 protons and 30 neutrons (2) 25 neutrons and 30 protons (3) 55 protons (4)
In plane transmission grating the width of the each slit is same to half of the opaque portion. Which order of spectra will be absent?
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