Bissoy.com
Doctors Medicines MCQs Q&A

Consider the following statements: a. Beta particles are negatively charged and are more penetrating than Alpha particles, which are positively charged. b. Gamma particles are neutral and are more penetrating than Beta-particles. c. In general neutral particles can be said to be having very high penetrating power.

Consider the following statements: a. Beta particles are negatively charged and are more penetrating than Alpha particles, which are positively charged. b. Gamma particles are neutral and are more penetrating than Beta-particles. c. In general neutral particles can be said to be having very high penetrating power. Correct Answer a and b are universally true.

The correct answer is a and b are universally true.

Key Points

  • Beta particles are negatively charged and are more penetrating than Alpha particles, which are positively charged.
  • Gamma particles are neutral and are more penetrating than Beta-particles.
  • Hence a and b are universally true.

 

Important Points

Property Alpha Ray Beta ray Gamma Ray
Nature Positive charge(+) Negative Charge(-) Neutral
Charge +2e -e 0
Range up to 10 cm  up to a few meters Several meters
Can be stopped by Paper sheet Aluminium sheet Thick lead sheet(2 feet)

Additional Information

Alpha Rays

  • Alpha rays are positively charged particles.
  • Alpha-particle is a highly active and energetic helium atom.
  • These particles have the minimum penetration power and highest ionization power.
  • It is due to the fact that the radioactive substances that release alpha particles are required to be handled after wearing rubber gloves.

Beta Rays

  • Beta particles are extremely energetic electrons released from the inner nucleus.
  • They bear negligible mass and carry a negative charge.
  • A neutron in the nucleus splits into a proton and an electron on the emission of a beta particle.
  • Beta particles have a higher penetration power when compared to alpha particles.
  • Beta rays can travel through the skin easily.

 Gamma Rays

  • The waves arising from the high-frequency end of the electromagnetic spectrum that have no mass are known as gamma rays.
  • They hold the highest power of penetration.
  • They are the most penetrating but least ionizing and very difficult to resist from entering the body.
  • The Gamma rays carry a large amount of energy and can also travel via thick concrete and thin lead sheet (less than 2 feet in width).

Related Questions

Which of the following statements is/are true/false? A. An ion is a charged particle and can be negatively or positively charged. A negatively charged ion is called an anion and a positively charged ion, a cation B. An ion is a charged particle and can be negative or positively charged. A negatively charged ion is called a cation. And a positively charged ion, an anion.
Alpha, Beta and Gama went for a picnic at Jurassic Park, when they feel hungry they took out the stuff they brought. Alpha bought 6 sandwiches while Beta bought 4 and Gamma bought none. Both Alpha and Beta shared their sandwiches with Gamma such that each got the same amount. If Gamma paid a total amount of Rs. 10 to Alpha and Beta, how much of Rs. 10 should Alpha get ? (Assume that sandwiches and rupees can be split.)
Consider the following statements and Choose the correct statement/s.   A) Alpha rays are positively charged particles. B) Beta rays are negatively charged particles. C) Gamma rays are neutral particles.
The Taj Mahal Palace opened in Mumbai, in 1903. Alpha, Beta and Gamma three friends had a dinner at one of its famous restaurant. When the bill was received, Alpha paid 4/3 as much as Beta paid and Beta paid 1/4 as much as Gamma paid. What fraction of the bill did Beta pay?
Assertion (A) Amongst alpha, beta and gamma rays, α-particle has maximum penetrating power.
Reason (R) The alpha particle is heavier than beta and gamma rays.
In a two-electron atomic system having orbital and spin angular momenta $${l_1}{l_2}$$  and $${s_1}{s_2}$$  respectively, the coupling strengths are defined as $${\Gamma _{{l_1}{l_2}}},\,{\Gamma _{{s_1}{s_2}}},\,{\Gamma _{{l_1}{s_1}}},\,{\Gamma _{{l_2}{s_2}}},\,{\Gamma _{{l_1}{l_2}}}$$      and $${\Gamma _{{l_2}{s_1}}}.$$  For the jj coupling. scheme to be applicable, the coupling strengths must satisfy the condition
Consider the following for real numbers α, β, γ and δ ? 1) sec α = 1/4 2) tan β = 20 3) cosec γ = 1/2 4) cos δ = 2 How many of the above statements are not possible?
In which of the following case we can surely say that the body A is charged: a) When a positively charged body is kept near to body A and it gets attracted b) When a negatively charged body is kept near to body A and it gets  attracted c) When a positively charged body is kept near to body A and it gets repelled
Three boys Alpha, Beta and Gama planned to make a sports car. Alpha and Beta can finish the task in 18 days; Beta and Gama can do it in 24 days while Gama and Alpha can finish it in 36 days. In how many days will each one of them finish it?
Alpha, Beta and Gama are three masons appointed in a construction company. They got a task and all of them began the work together. Alpha can finish the task in 12 days, Beta in 10 days and Gama in 15 days. Due to fracture in his hand, Alpha had to leave his job after 4 days of his appointment. Five days before the completion of the task Beta leave. How long did the work last?