The maximum number of possible interference maxima for slit-separation equal to twice the wavelength in Young’s double-slit experiment is
|
(a) Infinite |
(b) Five |
(c) Three |
(d) Zero |
(b) Five
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If an electron and a photon propagate in the form of waves having the same wavelength, it implies that they have the same
|
(a) Energy |
(b) Momentum |
(c) Velocity |
(d) Angular momentum |
If particles are moving with same velocity, then maximum de-Broglie wavelength will be for
|
(a) Neutron |
(b) Proton |
(c) b-particle |
(d) α - particle |
Which particles will have minimum frequency of revolution when projected with the same velocity perpendicular to a magnetic field
|
(a) |
(b) Electron |
(c) Proton |
(d) |
For a cell of e.m.f. 2V, a balance is obtained for 50 cm of the potentiometer wire. If the cell is shunted by a 2Ω resistor and the balance is obtained across 40 cm of the wire, then the internal resistance of the cell is
|
(a) 0.25 Ω |
(b) 0.50 Ω |
(c) 0.80 Ω |
(d) 1.00 Ω |
In Young's experiment, the distance between the slits is reduced to half and the distance between the slit and screen is doubled, then the fringe width
|
(a) Will not change |
(b) Will become half |
|
(c) Will be doubled |
(d) Will become four times |
