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History of Discovery of Radioactivity

Total questions: 10

Worksheet time: 10mins

Name
Class
Date
1.

Who discovered X-ray accidentally while taking an x-ray photograph

a)
b)
c)
2.

Who discovered alpha ray that is emitted from the nucleus of uranium-238

a)
b)
c)
3.

Who discovered gamma ray that is emitted from the nuclei of radium and polonium?

a)
b)
c)
4.

Who won Nobel Price because of discovery in radioactivity?

a)
b)
c)
5.

Which of the following are radioactive radiation?

a)

alpha, α

b)

theta, θ

c)

beta, β

d)

gamma, γ

e)

delta, δ

6.

Which of the following are radioactive radiation in the form of particle?

a)

alpha, α

b)

theta, θ

c)

beta, β

d)

gamma, γ

e)

delta, δ

7.

Which of the following are radioactive radiation in the form of radioactive ray?

a)

alpha, α

b)

theta, θ

c)

beta, β

d)

gamma, γ

e)

delta, δ

8.

SI unit for radioactivity

a)

Aq

b)

Bq

c)

Ci

d)

Fahrenheit

9.

Unit used in radioactivity

a)

Aq

b)

Bq

c)

Ci

d)

Fahrenheit

10.

time taken for the number of undecayed nuclei to be reduced to half of its original value


this is also known as

(a)