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What are The Stars?
The star is made of dust and gas in space.
Essentially it has many stages they are
1.black hole
2.nuetron star
3.supernova
4.red giant stage
Our solar system having a big star name sun which is attracting 8 other planets with its gravity.
It has an expected age of 10 billion years.
Describe "Reverberation time" and "Absorption coefficient". Illustrate Sabine's formula for reverberation time in a closed auditorium.
An athlete run a certain distance before taking a long jump. Why?
the energy stored in the capacitor decreases with time as the capacitor discharges. After how many time constant is this stored energy one forth its initial value
Show the ray diagram showing the experimental arrangement for pure spectrum.
What is a capacitor
Write down the differential equation for a simple harmonic oscillator subjected to a damping force proportional to the velocity (v) of the oscillator and the periodic force of angu
What is the relationship among the period and the square root of the length? The graph is linear, so the period is proportional to the square root of the length of the string.
1. A child pulls a toy car weighing 0.20 kg across a smooth floor by means of a string attached to it. If the string makes an angle of 60° to the floor and the child pulls with a f
What is the work done to take a particle of mass m from surface of the earth to a height equal to 2R (R=radius of earth )? Ans) Initial PE= - GMm/R Final PE = - GMm/3R
What occures to the normal shift when the thickness of the optical medium is decreased? Write down the expression for equivalent focal length of combination of two thin lenses d
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