Nature of Radioactive Radiation

Q. In Rutherford and Willard experiment, the rays were allowed to pass through an electric field as shown in the figure A. Choose the correct statements regarding this experiment.

1. Rays deviated towards negatively charged plate are alpha rays.
2. Rays deviated towards positively charged plate are alpha rays.
3. Rays deviated towards positively charged plate are beta rays.
4. Rays which do not deviate at all are beta rays.

Q. Which of the following are properties of canal rays?

1. Canal rays deflect towards negatively charged plate
2. Canal rays deflect towards postively charged plate
3. Canal rays travel along a straight path in absence of electric and magnetic field
4. Canal rays are positively charged radiations due to positive charged sub-atomic particles

Q. Why we use X-ray source in Milikan's oil drop experiment apparatus, what's importance of that?

Q. The type of rays that deviate towards the positively charged plate are known as ______.

1. alpha rays
2. beta rays
3. gamma rays
4. x-rays

Q.

Cathode Rays are

1. Radiations

2. Stream of Electrons

3. Stream of Alpha Particles

4. Electromagnetic Waves

Q. The rays exhibit maximum penetration power.

1. alpha
2. beta
3. gamma

Q. Which rays are not deflected in electric or a magnetic field ?

1. alpha rays
2. gamma rays
3. all the above
4. beta rays

Q. In Rutherford and Willard experiment, the rays were allowed to pass through an electric field as shown in the figure A. Choose the correct statements regarding this experiment.

1. Rays deviated towards negatively charged plate are alpha rays.
2. Rays deviated towards positively charged plate are alpha rays.
3. Rays deviated towards positively charged plate are beta rays.
4. Rays which do not deviate at all are beta rays.

Q. The type of radiation that has the greatest penetrating power through matter is:

1. $\alpha$
2. $\gamma$
3. ${\beta }^{-}$
4. visible light

Q. Which of the following are the harmful effects of radioactive radiations?

1. Skin cancer
2. Bone cancer
3. Leukemia
4. Genetic disorder
5. Colon cancer
6. Diarrhoea
7. Influenza
8. Ashthma

Q. Choose the correct pairs of radioactive particles and the charge possessed by them.

1. Alpha
2. Beta
3. Gamma
4. Positive
5. Negative
6. Neutral