| 1 |
The special theory of relatively treats the problems involving: |
Inertial frames of reference
Non-inertial frames
Non-accelerated frame
Botha (A) and (C)
Both (B) and (C)
|
| 2 |
Strictly speaking, the earth is: |
An accelerated frame of reference
A non-inertial frame of reference
An inertial frame of reference
<sup>A non-accelerated frame of reference</sup>
Both (A) and (B)
|
| 3 |
The concept of direction is purely: |
Absolute
Relative
Relative to stars always
Relative to the sun always
None of these
|
| 4 |
Current, voltage, resistance measuring circuit is connected with the galvanometer with the help of switch, known as |
ON switch
off switch
function switch
none of these
|
| 5 |
The energy of the 4th orbit in hydrogen atom is |
2.5 ev
- 3.5 ev
-0.85 ev
-13.6 ev
|
| 6 |
Position and momentum of a particle cannot both be measured simultaneously with perfect accuracy. This is the statement of |
photoelectric effect
pair production
Compton effect
uncertainty principle
|
| 7 |
de-Broglies hypthesis was experimentally verified by |
Maxwell
Compton
Einstein
Davison and Germer
|
| 8 |
G.P. Thomson observer experimentally that electrons and neutrons possess |
particle-like properties
wave-like properties
neither particle nor wave like properties
none of these
|
| 9 |
Davision and Germer performed experiment to verify |
de-Brogile hypothesis
theory of relativity
Newton's law of gravitation
Mass-energy relation
|
| 10 |
Wave nature of particle was proposed by |
Einstein
Plank
De-Brogile
Max well
|
| 11 |
Momentum is a parameter associated with |
wave motion
particle motion
neither wave nor particle motion
none of these
|
| 12 |
With the help of 50 K v electron microscope, a resolution of |
0.5 to 1 m to possible
1 m to 10 m is possible
0.5 to 1 nm is possible
1 to 10 nm is possible
|
| 13 |
Which of the following phenomenon proves the particle nature of light |
interference
diffraction
photoelectric effect
none of these
|
| 14 |
An electron is accelerated through a potential difference of 50v. its de-Brogile wavelength is |
1.66 x 10<sup>-29</sup>m
1.74 x 10<sup>-10</sup>cm
17.4 x 10<sup>-6</sup>m
1.74 x 10<sup>-10</sup>m
|
| 15 |
A particle of mass 5.0 mg moves with a speed of 8.0 m/s. Its de-Brogile wavelength is |
1.66 m
1.66 x 10<sup>-10</sup>m
1.66 x 10<sup>-29</sup>cm
1.66 x 10<sup>-29</sup>m
|
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