Answer:

1.the correct answer is Gamma rays. Velocity of Alpha particles = 2*10^7 m/s. Velocity of Beta particles = 2*10^8 m/s. Velocity of Gamma particles = 3*10^8 m/s.

2.Alpha particles are positively charged, beta particles are negatively charged, and gamma radiation is electrically neutral . This means that alpha and beta radiation can be deflected by electric fields , but gamma radiation cannot.The penetrating power of alpha rays, beta rays, and gamma rays varies greatly. Alpha particles can be blocked by a few pieces of paper. Beta particles pass through paper but are stopped by aluminum foil. Gamma rays are the most difficult to stop and require concrete, lead, or other heavy shielding to block them. Remember that opposite charges attract.

4.The correct order of ionising capcity of α,β and γ-rays is

α rays have the maximum ionising power and γ rays have the minimum ionising power and the correct relation is x gt y gt z

Explanation:

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