Dual Nature of Radiation and Matter Test

Result

Dual Nature of Radiation and Matter Test - 41

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Weekly Quiz Competition

Question 1
4 / -1

If an electron oscillates at a frequency of 1 GHz it gives

A
X-rays

B
Mirowaves

C
Infrared rays

D
None of these
Question 2
4 / -1

In a discharge tube at 0.02 mm, there is a formation of

A
FDS

B
CDS

C
Both space

D
None of these
Question 3
4 / -1

Electric field and magnetic field in Thomson mass spectrograph are applied

A
Simultaneously, perpendicular

B
Perpendicular but not simultaneously

C
Parallel but not simultaneously

D
Parallel simultaneously

Solution
Question 4
4 / -1

The current conduction in a discharged tube is due to

A
Electrons only

B
+ve ions and electrons

C
–ve ions and electrons

D
+ve ions, –ve ions and electrons
Question 5
4 / -1

In Millikan\'s oil drop experiment, a charged drop falls with terminal velocity V. If an electric field E is applied in vertically upward direction then it starts moving in upward direction with terminal velocity 2V. If magnitude of electric field is decreased to E/2, then terminal velocity will become

A
V/2

B
V

C
3V/2

D
2 V

Solution
Question 6
4 / -1

A
2Ee /3m

B
3Ee /2m

C
2 m/3Ee

D
3 m/2Ee

Solution
Question 7
4 / -1

An electron is moving in electric field and magnetic field it will gain energy from

A
Electric field

B
Magnetic field

C
Both of these

D
None of these
Question 8
4 / -1

Positive rays were discovered by

A
Thomson

B
Goldstein

C
W. Crookes

D
Rutherford
Question 9
4 / -1

The kinetic energy of an electron gets tripled, then the de-Broglie wavelength associated with it changes by a factor

A

B

C

D
3

Solution
Question 10
4 / -1

G.P. Thomson experimentally confirmed the existence of matter waves by the phenomena

A
Diffraction

B
Refraction

C
Polarisation

D
Scattering