>
Exams
>
Physics
>
Dual nature of radiation and matter
>
an electron and a proton have the same wavelength
Question:
An electron and a proton have the same wavelength λ. This implies they have the same:
Show Hint
de Broglie wavelength
CBSE CLASS XII - 2024
CBSE CLASS XII
Updated On:
Jan 13, 2026
momentum
angular momentum
speed
energy
Hide Solution
Verified By Collegedunia
The Correct Option is
A
Solution and Explanation
de Broglie wavelength: λ = h/p. Same λ implies same momentum p.
Download Solution in PDF
Was this answer helpful?
0
0
Top Questions on Dual nature of radiation and matter
A light wave described by E = 60[\(\sin(3 \times 10^{15})t + \sin(12 \times 10^{15})t\)] (in SI units) falls on a metal surface of work function 2.8 eV. The maximum kinetic energy of ejected photoelectron is (approximately)________ eV. (h=\(6.6 \times 10^{-34}\) J.s. and e=\(1.6 \times 10^{-19}\) C)
JEE Main - 2026
Physics
Dual nature of radiation and matter
View Solution
Find the ratio of de-Broglie wavelengths of deuteron having energy E and \(\alpha\)-particle having energy 2E :
CUET (UG) - 2026
Physics
Dual nature of radiation and matter
View Solution
Whether the total mass of nuclei increases, decreases or remains unchanged?
CBSE CLASS XII - 2025
Physics
Dual nature of radiation and matter
View Solution
A laser beam of frequency \( 3.0 \times 10^{14} \) Hz produces average power of 9 mW. Find (i) the energy of a photon of the beam, and (ii) the number of photons emitted per second on an average by the source.
CBSE CLASS XII - 2025
Physics
Dual nature of radiation and matter
View Solution
The momentum (in kg·m/s) of a photon of frequency \( 6.0 \times 10^{14} \) Hz is:
CBSE CLASS XII - 2025
Physics
Dual nature of radiation and matter
View Solution
View More Questions
Questions Asked in CBSE CLASS XII exam
Three batteries E1, E2, and E3 of emfs and internal resistances (4 V, 2 \(\Omega\)), (2 V, 4 \(\Omega\)) and (6 V, 2 \(\Omega\)) respectively are connected as shown in the figure. Find the values of the currents passing through batteries E1, E2, and E3.
CBSE CLASS XII - 2025
Kirchhoff's Laws
View Solution
Two wires made of the same material have the same length \( l \) but different cross-sectional areas \( A_1 \) and \( A_2 \). They are connected together with a cell of voltage \( V \). Find the ratio of the drift velocities of free electrons in the two wires when they are joined in:
(i) series, and (ii) parallel.
CBSE CLASS XII - 2025
Current electricity
View Solution
Suppose, the value of Average Propensity to Consume (APC) is 0.8 and National Income is ₹ 4,000 crores, the value of saving would be ₹ ____ crores. (Choose the correct option to fill up the blank)
CBSE CLASS XII - 2025
Income and Employment
View Solution
Surface area of a balloon (spherical), when air is blown into it, increases at a rate of 5 mm²/s. When the radius of the balloon is 8 mm, find the rate at which the volume of the balloon is increasing.
CBSE CLASS XII - 2025
Geometry
View Solution
Two wires of the same material and the same radius have their lengths in the ratio 2:3. They are connected in parallel to a battery which supplies a current of 15 A. Find the current through the wires.
CBSE CLASS XII - 2025
Current electricity
View Solution
View More Questions