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Derive the mathematical relation connecting n,u,v and R for refraction at a spherical surface concave towards a point object in a denser medium.
write a note on relative velocity.
When two part of progressive ray trains of similar type having the same amplitude and similar time period/ wavelength/ frequency traveling with similar velocity along the similar s
What do you mean by Doppler's shift? Derive a mathematical expression for the apparent frequency heard by a moving listener when the source of sound is at rest. What is the effe
a pendulum is timed ,first for 20 swings and then for 50 swings ; time for 20 swings = 17.4 sec and time for 50 sec = 43.2. calculate the average time per swing/
Q. How do you compute tensile strength? Answer:- Tensile strength is not actually calculated it's measured. It is classified as the point at which a sample of material fai
Davisson and Germer scattered electrons from a crystal of nickel. The scattered electrons formed a strong diffraction pattern. What significant conclusion was drawn from thi
A ball of mass 0.7 kg is dropped vertically from a height of 10 m onto a concrete floor. The ball is observed to bounce a number of times before coming to rest. The coefficient of
a pond is an example of
Consider a 10 cm long portion of a straight wire having a current of 10 A placed in a magnetic field of 0.1 T making an angle of 530 with the wire. What magnetic force does the wi
what are coherent waves
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