Atoms and Nuclei Test

Result

Atoms and Nuclei Test - 78

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
4 / -1

The masses of neutron and Proton are 1.0087 amu and 1.0073 amu respectively. It the neutron and Protons combines to form binding energy of the helium nucleus will be

A
14.2 MeV

B
28.4 MeV

C
27.3 MeV

D
20.8 MeV

Solution
Question 2
4 / -1

Large angle scattering of α - particle could not be explained by

A
Thomson model

B
Ruther Rutherford and Thomson modal

C
Both Rutherford and Thomson modal

D
Neither Rutherford modal nor Thomson modal
Question 3
4 / -1

The activity of a radioactive sample is measured as no counts Per minute at t = o and no counts per minute t = 5 min The time (in min) at which activity reduces to half its values is

A

B

C

D

Solution
Question 4
4 / -1

A heavy nucleus at lest breaks into two figments which fly off with velocities in the ratio 8:1 The ratio of radial of the figments is

A
1 : 2

B
4 : 1

C
1 : 4

D
2 : 1

Solution
Question 5
4 / -1

The binding energy per nucleus of ₈O¹⁶ is 7.97 Me V and that of ₈O¹⁷ is 7.75 MeV The energy (in-MeV) required to remove a neutron from ₈O¹⁷ is

A
3.65

B
7.86

C
3.52

D
4.23

Solution
Question 6
4 / -1

The shape of the graph ln I → t is

A
straight Line

B
Parabolic curve

C
Hyperbole curve

D
random shade curve
Question 7
4 / -1

The fig shows an energy levels for the electron in a certain atom which transition in a represents the emission of a Photon with most energy?

A
III

B
IV

C
I

D
II
Question 8
4 / -1

The Probability of survival of a radioactive nucleus for one mean life time is

A

B

C

D
Question 9
4 / -1

As the electron in Bohr is orbit of hydrogen atom Passes from state n = 2 to n = 1, the K.E. and Potential energy changes as

A
Two fold , also two fold

B
four fold , two fold

C
four fold , also four fold

D
two fold , four fold

Solution
Question 10
4 / -1

A
β, α, γ

B
α, β, γ

C
γ, β, α

D
β, γ, α

Solution