Meson particles are found in- (1) R-rays (2) X-rays (3) Laser beam (4) Cosmic rays

Meson particles are found in- (1) R-rays (2) X-rays (3) Laser beam (4) Cosmic rays
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(4) Cosmic rays Explanation: Meson, any member of a family of subatomic particles composed of a quark and an antiquark. Mesons are sensitive to the strong force, the fundamental interaction that binds the components of the nucleus by governing the behavior of their constituent quarks.
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Where are mesons found? (1) Cosmic rays (2) X-rays (3) Gamma rays (4) Laser beam

Description : Where are mesons found? (1) Cosmic rays (2) X-rays (3) Gamma rays (4) Laser beam

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Where are mesons found ? (1) Cosmic rays (2) X-rays (3) Gamma rays (4) Laser beam

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Which of the following particles has the dual nature of particle– wave? (1) Electron (2) Meson (3) Proton (4) Neutron

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Last Answer : Electron

One of the particles expected to be discovered at the Superconducting Super Collider is the: w) Higg's boson. x) tau meson. y) tachyon. z) anti-proton.

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Last Answer : Ans:(c)

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Description : It is dangerous to observe solar eclipse with naked eyes because – (1) Infrared radiations from sun burn our retina (2) Ultraviolet radiations from Sun burn our retina (3) All radiations from sun initiate chemical reactions in eyes (4) Cosmic rays reach eyes more during the eclipse

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Energy of Ultraviolet rays is great than (1) Infra-red rays (2) Gamma rays (3) X-rays (4) Cosmic rays

Description : Energy of Ultraviolet rays is great than (1) Infra-red rays (2) Gamma rays (3) X-rays (4) Cosmic rays

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Which of the following rays has the least wavelength? (A) Ultraviolet rays (B) Infrared rays (C) Cosmic rays (D) X-rays

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Last Answer : (C) Cosmic rays

Energy of Ultraviolet rays is great than (1) Infra–red rays (2) Gamma rays (3) X–rays (4) Cosmic rays

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Why do the members of the Fantastic Four have different powers if they were all exposed to the same cosmic rays?

Description : Why do the members of the Fantastic Four have different powers if they were all exposed to the same cosmic rays?

Last Answer : That’s the Nature part of Nature vs. Nurture.

Who Discovered Cosmic Rays ?

Description : Who Discovered Cosmic Rays ?

Last Answer : Rutherford discovers cosmic rays.

Cosmic rays are coming from

Description : Cosmic rays are coming from

Last Answer : Interstellar space

The nature of light waves is similar to (a) Cosmic rays (b) Cathode rays (c) Alpha rays (d) Gamma rays

Description : The nature of light waves is similar to (a) Cosmic rays (b) Cathode rays (c) Alpha rays (d) Gamma rays

Last Answer : Ans:(d)

Ozone layer is formed due to reactions of : (1) oxygen and ultraviolet rays (2) carbon dioxide and layers of atmosphere (3) cosmic rays and layers of atmosphere (4) infrared rays and ultraviolet rays

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The Ozone layer protects us from: (1) Cosmic rays (2) Ultra-Violet rays (3) Visible rays (4) Infrared rays

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It is dangerous to observe solar eclipse with naked eyes because – (1) Infrared radiations from sun burn our retina (2) Ultraviolet radiations from Sun burn our retina (3) All radiations from sun initiate chemical reactions in eyes (4) Cosmic rays reach eyes more during the eclipse

Description : It is dangerous to observe solar eclipse with naked eyes because – (1) Infrared radiations from sun burn our retina (2) Ultraviolet radiations from Sun burn our retina (3) All radiations from sun initiate chemical reactions in eyes (4) Cosmic rays reach eyes more during the eclipse

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It is dangerous to observe Solar eclipse with naked eyes because (1) Infrared radiations from sun burn our retina (2) Ultraviolet radiations from Sun burn our retina (3) All radiations from sun initiate chemical reactions in eyes (4) Cosmic rays reach eyes more during the eclipse

Description : It is dangerous to observe Solar eclipse with naked eyes because (1) Infrared radiations from sun burn our retina (2) Ultraviolet radiations from Sun burn our retina (3) All radiations from sun initiate chemical reactions in eyes (4) Cosmic rays reach eyes more during the eclipse

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Last Answer : oxygen and ultraviolet rays

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Description : Ozone layer in the outer atmosphere helps us in (1) reflecting radio waves and makes radio communication possible (2) regulating the temperature of atmosphere (3) absorbing cosmic ray particles (4) absorbing U-V radiations

Last Answer :  absorbing U-V radiations

The nuclear particle having no mass and no charge, but only spin is - (1) proton (2) neutrino (3) meson (4) electron

Description : The nuclear particle having no mass and no charge, but only spin is - (1) proton (2) neutrino (3) meson (4) electron

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Description : (A) `alpha`-rays have greater ionising power the `beta` (R ) `alpha`-particles carry `2^(+)` charge while `beta`-particles carry only `I^(-)` charge.

Last Answer : (A) `alpha`-rays have greater ionising power the `beta` (R ) `alpha`-particles carry `2^(+)` charge while ... . D. If both (A) and (R ) are incorrect.

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Dr. Leon Lederman and two other physicists won the Nobel prize for discovering an elementary particle. That particle is the: w) positron x) meson y) muon z) neutrino

Description : Dr. Leon Lederman and two other physicists won the Nobel prize for discovering an elementary particle. That particle is the: w) positron x) meson y) muon z) neutrino

Last Answer : ANSWER: Z -- NEUTRINO

The emission of a positron from a radioactive atom is generally accompanied by the emission of one of the following. Is it accompanied by the emission of: w) a meson x) a baryon y) an antineutrino z) a neutrino

Description : The emission of a positron from a radioactive atom is generally accompanied by the emission of one of the following. Is it accompanied by the emission of: w) a meson x) a baryon y) an antineutrino z) a neutrino

Last Answer : ANSWER: Z -- A NEUTRINO

I have severe osteoarthritis and in paticular my index finger large joint is very swollen and painful. Could this laser tech procedure work on that joint.A surgeon wants to replace this joint. X-rays show large white deposits. I really don't want surgery.?

Description : I have severe osteoarthritis and in paticular my index finger large joint is very swollen and painful. Could this laser tech procedure work on that joint.A surgeon wants to replace this joint. X-rays show large white deposits. I really don't want surgery.?

Last Answer : Laser surgery is much less invasive than the old types of surgeries that are available. You will recuperate much faster and have less pain. In my case I have had that type of surgery and though I do ... replacement. Only you can make this decision for yourself. I can tell you that it worked for me.

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Description : The practical application of electrostatic is: (a) Photocopier (b) X-rays machines (c) Laser (d) All of above 42. The electric field lines emerge from the charges in: (a) Three dimensions (b) Two dimensions (c) One dimension (d) All of above

Last Answer : (a) Photocopier

Which scientist got the particle name for ‘mesotron’ changed to ‘meson’ ? (1) Hans Adolf Krebs (2) Carl David Anderson (3) Dr Homi Jehangir Bhabha (4) William Buehler

Description : Which scientist got the particle name for ‘mesotron’ changed to ‘meson’ ? (1) Hans Adolf Krebs (2) Carl David Anderson (3) Dr Homi Jehangir Bhabha (4) William Buehler

Last Answer : Dr Homi Jehangir Bhabha

Laser radiation is: w) monochromatic x) directed in a narrow beam y) produced with large power densities z) all of the above

Description : Laser radiation is: w) monochromatic x) directed in a narrow beam y) produced with large power densities z) all of the above

Last Answer : ANSWER: Z -- ALL OF THE ABOVE

The characteristic that distinguishes a laser beam from an ordinary light beam is: w) the greater frequency of the laser beam x) the coherence of the laser beam y) the color of the laser beam z) the greater polarization of the laser beam

Description : The characteristic that distinguishes a laser beam from an ordinary light beam is: w) the greater frequency of the laser beam x) the coherence of the laser beam y) the color of the laser beam z) the greater polarization of the laser beam

Last Answer : ANSWER: X -- THE COHERENCE OF THE LASER BEAM

The beam that leaves the target is called, A. The primary X-ray B. The electrons ( from the cathode) C. The secondary rays (scattered radiation) D. X-ray photons no

Description : The beam that leaves the target is called, A. The primary X-ray B. The electrons ( from the cathode) C. The secondary rays (scattered radiation) D. X-ray photons no

Last Answer : A. The primary X-ray

In X rays filtration is used to:** A. Remove low energy X rays B. Reduce exposure time C. Reduce size of the beam

Description : In X rays filtration is used to:** A. Remove low energy X rays B. Reduce exposure time C. Reduce size of the beam

Last Answer : A. Remove low energy X rays

A perfectly spherical bubble of air is suspended in a tank of water. A beam of light consisting of parallel rays passes through the bubble. As the light emerges from the opposite side of the bubble the light rays: w) diverge x) converge y) are unaffected

Description : A perfectly spherical bubble of air is suspended in a tank of water. A beam of light consisting of parallel rays passes through the bubble. As the light emerges from the opposite side of the bubble the light rays: w) diverge x) converge y) are unaffected

Last Answer : ANSWER: W -- DIVERGE

7.Fine beam of light entering through a small hole in a dark room,illuminates the particles in its path.Name the process associated and Explain. -Chemistry

Description : 7.Fine beam of light entering through a small hole in a dark room,illuminates the particles in its path.Name the process associated and Explain. -Chemistry

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The alpha particles are A)High`-` energy electrons B)Positively charged hydrogen ions C) High`-` energy `X-` rays radiations D)Double positively charg

Description : The alpha particles are A)High`-` energy electrons B)Positively charged hydrogen ions C) High`-` energy `X-` rays radiations D)Double positively charg

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Description : X-rays are – (1) positively charged particles (2) negatively charged particles (3) neutral particles (4) None of these

Last Answer : (3) neutral particles Explanation: Like gamma rays and neutrons, X-rays are electrically neutral. They have neither a positive nor a negative charge. They cannot be accelerated or made to ... particles (electrons and positrons) and heavy charged particles (protons, alpha particles and heavier ions).

Which of the following is generally used for induced mutagenesis in crop plants? (a) X-rays (b) UV (260 nm) (c) Gamma rays (from cobalt-60) (d) Alpha particles

Description : Which of the following is generally used for induced mutagenesis in crop plants? (a) X-rays (b) UV (260 nm) (c) Gamma rays (from cobalt-60) (d) Alpha particles

Last Answer : (c) Gamma rays

X–rays are (1) positively charged particles (2) negatively charged particles (3) neutral particles (4) None of these

Description : X–rays are (1) positively charged particles (2) negatively charged particles (3) neutral particles (4) None of these

Last Answer :  neutral particles