MCQ
de-Broglie wavelength ($ \lambda $) of different particles having same kinetic energy depends on their mass as :
- A$ \lambda \propto m $
- B$ \lambda \propto m^{1/2} $
- C$ \lambda \propto m^{-1} $
- ✓$ \lambda \propto m^{-1/2} $
✓
Answer
Correct option: D.
$ \lambda \propto m^{-1/2} $
D
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
An ideal coil of 10 henry is joined in series with a resistance of 5 ohm and a battery of 5 volt. 2 second after joining, the current flowing in ampere in the circuit will be
|
(a) |
(b) |
(c) (1 – e) |
(d) e |
The length of Milky way is
|
(a) 100,000 light years |
(b) 10,000 light years |
(c) 1000 light years |
(d) 100 light years |
A charged particle of mass 5 
is held stationary in space by placing it in an electric field of strength 
directed vertically downwards. The charge on the particle is
|
(a) -20 |
(b) -5 |
(c) 5 |
(d) 20 |
If 
in the given figure, then resistance X will be
|
(a) 5Ω |
(b) 10 Ω |
(c) 15 Ω |
(d) 20 Ω |
Carbon resistors are of two types:
For germanium diode, the junction voltage is about _____.
An electron (mass = 9.1 
kg; charge = 1.6 
C) experiences no deflection if subjected to an electric field of 3.2 
V/m, and a magnetic fields of 2.0 
Wb/m2. Both the fields are normal to the path of electron and to each other. If the electric field is removed, then the electron will revolve in an orbit of radius
|
(a) 45 m |
(b) 4.5 m |
(c) 0.45 m |
(d) 0.045 m |
A wire of resistance R is divided in 10 equal parts. These parts are connected in parallel, the equivalent resistance of such connection will be
|
(a) 0.01 R |
(b) 0.1 R |
(c) 10 R |
(d) 100 R |
A particle of mass 'm' and charge 'q' enters in an uniform magnetic field B perpendicularly. The radius of its path will be :
A galvanometer of resistance 25Ω galvanometer is given by a 2.5Ω wire. The part of total current $I _0$ that flows through the galvanometer is given by
→