Cosmic rays were first discovered by

The name Cosmic ray was given by

Primary cosmic rays are

The energy of Cosmic Ray particles is of the order of

Which one is the hard component in secondary cosmic rays.

The minimum energy required for photon to undergo pair production is

Cascade theory of cosmic ray showers was put forward by

The cosmic ray intensity at equator ( sea level ) is minimum.

Pions are

The spin of photon is

 $\Omega^-\ is\ a\$  

Graviton is a

LHC is situated at

 $\nu_e^-\ \ refers\ to\ anti\ neutrino$   $n\ \rightarrow\ p\ +\ e^-+\nu_e^-$  

As per Charge, Lepton and Baryon conservation state whether this decay process will occur

 $\pi^-\rightarrow\mu^-+\nu_{\mu}^-\ \ \ \ \ where\ \nu_{\mu}^-\ is\ \mu\ anti\ neutrino.$  
Based on Charge, Baryon and Lepton number coservation can this decay process occur

 $\Lambda^{\degree}\rightarrow\pi^++\pi^-$  
Based on Charge, Baryon and Lepton number coservation can this decay process occur

 $\gamma+n\rightarrow\pi^-+p$  
Based on Charge, Baryon and Lepton number coservation can this decay process occur

 $\pi^++p\rightarrow\pi^++p+\pi^-+\pi^{\degree}$  
Based on Charge, Baryon and Lepton number coservation can this decay process occur

Bosons are particles with half integral spins

Fermions are particles with integral spins

Leptons are particles which do not have an internal structure.

The only stable Baryon is

Particles that interact with Higgs Field are given a mass via Higgs Boson.

Leptons are elementary particles which are affected by strong interactions.

Hadrons are elementary particles which are affected by strong interactions.

The Big Bang cosmology is supported by

Baryons are made up of

Mesons are made up of