- AElectromagnetic waves
- BMechanical waves
- CEither mechanical or electromagnetic waves
- DNeither mechanical nor electromagnetic waves
Explanation:
Matter waves are waves associated with every moving particle and therefore are neither mechanical nor electromagnetic waves.
These waves have
$\lambda$ = h × p
Where $\lambda$ is the wavelength, h is plank's constant, and p is the particle’s moment.
Therefore, matter waves are neither mechanical nor electromagnetic waves.
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If the resistance of a conductor is 5 W at 50oC and 7 W at 100oC then the mean temperature coefficient of resistance of the material is
|
(a) 0.008/oC |
(b) 0.006/oC |
(c) 0.004/oC |
(d) 0.001/oC |
With the increase in principle quantum number, the energy difference between the two successive energy levels
|
(a) Increases |
|
(b) Decreases |
|
(c) Remains constant |
|
(d) Sometimes increases and sometimes decreases |
The reading of the ideal voltmeter in the adjoining diagram will be
|
(a) 4 V |
(b) 8 V |
(c) 12 V |
(d) 14 V |