## Baba Maha Singh College of Engineering Muktsar

Baba Maha Singh College of  Engineering is situated in the city Muktsar (Punjab) of India.

Affiliated with: Punjab Technical University (PTU), Kapurthala

Approved by: All India Council for Technical Education (AICTE), New Delhi.

Courses offered:

B.Tech.

• Computer Science Engineering
• Information Technology
• Electronics and Communication Engineering
• Mechanical Engineering
• Nano Technology
• Automobile Engineering

Eligibility for Admission in B.Tech. Continue reading “Baba Maha Singh College of Engineering Muktsar”

## Time dilation in relativity derivation

Last time we have discussed and derive the length contraction in relativity, let us today discuss the concept of time dilation and derive the relation for time dilation.

Let us today discuss and derive an interesting concept in relativity called the time dilation. You must be astonished to know that when an object moves with a speed comparative to the speed of light, its time dilated or more appropriate term is that it is appeared to move slow. Continue reading “Time dilation in relativity derivation”

## Length contraction in relativity derivation

Let us today discuss and derive an interesting concept in relativity called the length contraction. You must be astonished to know that when an object moves with a speed comparative to the speed of light, its length contracted or more appropriate term is that it is apparent length contraction in relativity.

Let us start to discuss and derive why the length contraction occur in relativity: Continue reading “Length contraction in relativity derivation”

## Einstein postulates of theory of relativity

Explanation of the negative results of the Michelson-Morley experiment:

As the theoretical results of the M-M experiment did not match with the experimental results (Theoretically fringe shift result was not zero, it was about 0.4 but the experimentally it was 0). Even then the scientists of that time had conviction that ether exist and earth moves with respect to it. Thus there was lot of debate and discussion regarding this as why there were negative results (that is why the theory and experiment result did not match?).

Following are the reasons given by the scientists:

1.  Ether Drag Hypothesis: The then scientists assumed that ether exits and it is attached with the earth. Thus it will be dragged with the earth so the relative velocity of ether and earth will be zero. If this is taken then theory and experimental will get matched. But this hypothesis is discarded as there was no proof for this.

2. Lorentz-Fitzgerald Hypothesis: Lorentz told that the length of the arm (distance between the pale and the mirror M2) towards the transmitted side should be L(√1 – v2/c2) but not L. If this is taken then theory and experimental will get matched. But this hypothesis is discarded as there was no proof for this.

Einstein explanation of negative results of M-M experiment: Continue reading “Einstein postulates of theory of relativity”