Motion in a vertical circle and conservation of energy

A stone  tied to a string of length l is whirled around a vertical circle with the other end of the string at the centre. At a certain instant of time the stone is at the lowest position and has a speed u. What is the magnitude of change in its velocity as it reaches…… Continue reading Motion in a vertical circle and conservation of energy

Interference is in complete agreement to law of conservation of energy

Tilak gurjar posted; “Interference is in complete agreement to law of conservation of energy. Comment” Answer: If there were no interference, the resultant intensity at a point illuminated by two sources will be I = I1+I2 Due to interference This shows that energy is conserved even after interference. There is only a redistribution of energy. There…… Continue reading Interference is in complete agreement to law of conservation of energy