Question

1,Which of the following statemt(s) concerning alpha,beta and gamma rays are/is correct?

a.the path of alpha rays is changed by magnetic fields
b.the path of beta rays is changed my magnetic field
c.the ionizing power of gamma rays is very high
d.the penetrating power of alpha ays is very high

2.WHich of the following statement(s) is/are true regarding gamma rays?
a.Gamma rays travel at a velocity of 95% of the velocity of light
b.the ionizing power of gamma rays is very high
c.the pentrating power of gamma rays is very high
d.the path of gamma rays is not altered by magnetic fields

3.Which of the following statement(s) is/are true?
a.Electric fields do not affect the path of cathode rays
b.Magnetic fields do not affect the path of cathode rays
c.Electric fields do not affect the path of fast moving neutrons
d.magnetic fields do not affect the path of fast moving neutrons

Answer 1

1. b and d are correct. Beta rays can be deflected by a magnetic field, and alpha rays have low penetrating power.

2. b, c, and d are correct. Gamma rays have high ionizing power and penetrating power, and their path is not affected by magnetic fields. They also travel at a very high velocity, close to the speed of light.

3. a is false, as electric fields can affect the path of cathode rays. b is false, as magnetic fields can affect the path of cathode rays. c is false, as electric fields can affect the path of fast moving neutrons. d is true, as neutrons have no charge and therefore are not affected by magnetic fields.