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  • Strike while the iron is hot !
    AskPhysics Blog Feed Dear students, CBSE has given you more time for exams. We have approximately 7 days before the Physics exams. How to use this seven days effectively for a thorough revision is very important. 7-8 days of sleeping is a must. One hour of exercise 1 to 2 hours for break fast lunch […]
  • Dreams come true only for those who do their part
    AskPhysics Blog Feed I was recently narrating the life story of a girl from Dindigul who got married to a police constable at the age of 14. She was not even reached class 10. She became the mother of two kids by the age of 18. During that time she had to accompany her husband […]
  • “DID THOSE PHILOSOPHERS WORK IN VAIN”
    AskPhysics Blog Feed “The Philosophers who worked in search of the Philosophers’ stone and those set themselves dedicated to find the elixir of life”The works of those in search of the Philosopher’s stone didn’t go in vain, They made the beginning. The beginning itself was so wonderful that anyone who got touched by the idea […]
  • Quarks, conservation, entanglement
    AskPhysics Blog Feed Doubt from AskPhysics.comI have heard the following statements-> 1. Quarks always exist in a group of 2 or 3, and can not stand alone. 2. Protons are made up of 2 up quarks, and 1 down quark. 3. Quantum mechanics allows us to entangle a particle by somehow dividing it into 2(For […]
  • Prepare for Physics oral test too during lockdown
    AskPhysics Blog Feed Plus Two Physics Oral Test series Many schools have started oral questioning also as part of diagnostic and formative assessment. The initiative was … Prepare for Physics oral test too during lockdown The post Prepare for Physics oral test too during lockdown appeared first on Ask Physics.
  • Theory of Relativity
    AskPhysics Blog Feed The basic concepts of relativity are explained in a very simplified way that are easy to understood by Mr. Vivek Sawhney in this YouTube Video… The video focuses upon the general discussion on Theory of Relativity….What is the theory of Relativity? What is time dilation and length contraction? SUBSCRIBE to the YouTube […]
  • A numerical problem from motion in 1 Dimension
    AskPhysics Blog Feed A boy plays with a ball on a field surrounded by a fence which has a height of 2.5m . He kicks the ball vertically up from a height of 0.4m with a speed of 14 ms−1. (a) What is the maximum height of the ball above the fence? (b) What is […]

A particle that doesn’t fit the laws of physics – CERN

Researchers could be very close to finding a FIFTH  fundamental force. Results from the Large Hadron Collider hint at a particle that doesn’t fit the laws of physics. The new particle is believed to be SIX times heavier than the Higgs boson particle.

Further testing is required which is why more ‘collisions’ will commence next month in order to obtain new data. Scientists believe they will have either the ultimate confirmation or refutation of its existence by summer of 2016.

Professor John Ellis, theoretical physicist at Kings College London told the Mail Online in an interview: ‘it would be something completely beyond the Standard Model, and the tip of an iceberg of a large new set of particles if it exists.’

Two of the detectors, ATLAS and CMS, were used to look for new physics and did so by counting ‘particle decays’ that ended up in TWO photons

Researchers believe that this is a good way to push the limits of physics beyond the known because photons are easy to detect and scientists know exactly what to expect in terms of results of background events.

‘It weighs about 750 GeV, corresponding to about six times heavier than the Higgs boson, and almost 800 times heavier than the proton,’ said Professor Ellis.

Random collection of Physics Viva Questions

  1. State the Principle of a potentiometer. (The students say that potential drop is proportional to length but the constant quantities are not mentioned)
  2. How can we increase the sensitivity of a potentiometer?
  3. Define figure of merit of a galvanometer.
  4. Which has more resistance – a galvanometer or a milliammeter?
  5. How does an LED emit light?
  6. What is the difference between an ordinary diode and an LED?
  7. Define principal axis of a convex lens?
  8. What happens to the focal length of a concave mirror if it is immersed in water?
  9. What are the factors affecting the internal resistance of a cell?
  10. What are the difference between primary and secondary cell?
  11. Why can’t we use a dry cell for starting a car?
  12. What happens to the resistivity of a wire when it is doublefolded?
  13. How does the resistance of a wire depend on its dimensions?
  14. Why are the resistances used in a resistance box is like 1,2,2,5,10,20,20,50,100,200,200,500,1000,2000,2000,5000 etc?
  15. Why constantan or manganin wires are used for making the resistance coils in resistance box?
  16. What is a standard resistance?
  17. What are the characteristics of a standard resistance?
  18. What are the precautions to be observed while doing electricity experiments in general?
  19. What is a galvanometer?
  20. What is the resistance of an ideal ammeter?
  21. Why is ammeter always connected in series and voltmeter always connected in parallel?
  22. How can we convert a galvanometer into an ammeter or a voltmeter?
  23. What is shunt?
  24. What is AVO meter?
  25. What is the effect of temperature on the resistance of a conductor?
  26. Why does the resistance of a conductor increases with temperature, whereas that of a semiconductor decreases with temperature.
  27. What is conductance?
  28. What are non ohmic devices? give an example.
  29. What are superconductors?
  30. Define emf
  31. Why emf is said to be a misnomer?
  32. What happens if the battery used in the primary circuit of a potentiometer has less emf compared to the emf of the cell used in the secondary circuit?
  33. If you find that the galvanometer reading is shaky, what error can you expect?
  34. What do you mean by figure of merit of a galvanometer?
  35. Why a moving coil galvanometer is called so?
  36. What is the principle of a galvanometer?

Interesting News in Physics

Dancing in the quantum world – physicsworld.com

A new project known as “Danceroom Spectroscopy” represents a genuine fusion of art and science, resulting in an impressive visual art show that is driven by real physical laws.

The project’s mastermind is David Glowacki, a researcher at the University of Bristol in the UK. In this special video report, Glowacki talks to Physics World journalist James Dacey about his stimulus for the project and how the technology involved was inspired by some of the concepts from his research in theoretical chemistry. Glowacki describes how the project came about through a conversation with a friend about making music via motion. “What we quickly found out was that the idea had been done to death, so I came up with a more interesting way of attacking that problem,” he explains.

Read More at physicsworld.com

INTERESTING PHYSICS ARTICLES

Find below a collection of interesting Articles I came across while Browsing the web. Links are provided to the original website for complete reference   LATEST PHYSICS NEWS http://feeds.feedburner.com/physicsnews Can The Invisible Man See?   H.G.Wells classic novel “The invisible man” may have inspired a lot of ideas in the new generation, but if we […]

Rev. William R. Callahan Dies at 78, Dissident Who Challenged Vatican – New York Times

Rev. William R. Callahan Dies at 78, Dissident Who Challenged Vatican
New York Times
He had hoped to be an agronomist, but the Jesuits asked him to study physics because they needed physics professors in their universities.

Science showcase set Sept. 25 at UNC – TMCnet

Science showcase set Sept. 25 at UNC
TMCnet
catapults and trebuchets, virtual reality, wave simulation machine and advanced imaging. n Performances including a Phenomenal Physics show,

AERB experts lay to rest – Times of India

AERB experts lay to rest
Times of India
Rumours about radioactive material stored in the physics department doing the rounds well over a month now had led to a panic wave within the university and

and more »

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