Atoms and Nuclei Test

Result

Atoms and Nuclei Test - 73

Score
-
out of -
Rank
-
out of -

TIME Taken - -

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Weekly Quiz Competition

Question 1
4 / -1

The ionigation Potential of hydrogen atom is 13.6 eV. An electron in the ground state absords Photon of energy 12.75 eV. How many dirrerent spectral lines can one expect when electron make a down ward transition

A
1

B
2

C
6

D
4

Solution
Question 2
4 / -1

A

B

C

D

Solution
Question 3
4 / -1

A

B

C

D

Solution
Question 4
4 / -1

A
neutron

B
gamma

C
alpha

D
Beta
Question 5
4 / -1

Starting with a sample of Pure cu-66, 7/8 of it decays into Zn, 15 minutes the left of the sample is

A
5 min

B
7.5 min

C
10 min

D
15 min

Solution
Question 6
4 / -1

An α -particle of energy 5 MeV is scattered though 180^o by a fixed uranium nucleus. The distance of the closest approach nucleus The distance of the closest approach is of the order of

A
10^–8 cm

B
10^–12 cm

C
10^–10 cm

D
10^–15 cm
Question 7
4 / -1

A
23.6 MeV

B
26.9 MeV

C
13.9 MeV

D
19.2 MeV

Solution
Question 8
4 / -1

A radiation of energy E falls normally on a perfect reflecting surface. The momentum transferred to the surface is.

A

B

C

D

Solution
Question 9
4 / -1

A

B

C

D

Solution
Question 10
4 / -1

A
1.46 MeV

B
39.2 MeV

C
17.28 MeV

D
39.2 MeV

Solution