MCQ
According to classical theory, path of electron in Rutherford model :
- ACircular
- BIn straight line
- CParabolic
- ✓Spinal curve
✓
Answer
Correct option: D.
Spinal curve
(D) - Spinal curve
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
The inductance of a solenoid 0.5 m long of cross-sectional area 20 cm2 and with 500 turns is
|
(a) 12.5 mH |
(b) 1.25 mH |
(c) 15.0 mH |
(d) 0.12 mH |
Diffraction effects are easier to notice in the case of sound waves than in the case of light waves because
|
(a) Sound waves are longitudinal |
(b) Sound is perceived by the ear |
|
(c) Sound waves are mechanical waves |
(d) Sound waves are of longer wavelength |
A coil of inductance 40 henry is connected in 0series with a resistance of 8 ohm and the combination is joined to the terminals of a 2 volt battery. The time constant of the circuit is
|
(a) 40 seconds |
(b) 20 seconds |
(c) 8 seconds |
(d) 5 seconds |
Give the SI unit of magnetic permeability of free space.
The collector plate in an experiment on photoelectric effect is kept vertically above the emitter plate. Light source is put on and a saturation photocurrent is recorded. An electric field is switched on which has a vertically downward direction.
Two rays A and B being reflected by a mirror and going as A' and B'. The mirror:
A conducting rod of length 2l is rotating with constant angular speed w about its perpendicular bisector. A uniform magnetic field 
exists parallel to the axis of rotation. The e.m.f. induced between two ends of the rod is
|
(a) Bω |
(b) |
(c) |
(d) Zero |
During negative b - decay
|
(a) Neutron converts into proton |
(b) Proton converts into neutron |
|
(c) Neutron proton ratio increases |
(d) None of these |
The magnetic susceptibility is
|
(a) |
(b) |
(c) |
(d) |
The wave theory in its original form was first postulated by: