>
Exams
>
Physics
>
Modern Physics
>
the momentum of a photon is p the frequency associ
Question:
The momentum of a photon is $p$. The frequency associated with it is given by
Show Hint
The frequency of a photon can be determined using the relationship between its energy, momentum, and the speed of light.
IPU CET - 2016
IPU CET
Updated On:
Dec 11, 2025
$\frac{pc}{h}$
$\frac{hc}{p}$
$\frac{h}{pc}$
$\frac{ph}{c}$
Hide Solution
Verified By Collegedunia
The Correct Option is
A
Solution and Explanation
The energy of a photon is related to its momentum and frequency by the equation: \[ E = hf = \frac{pc}{h} \] Thus, the frequency associated with the photon is given by $\frac{pc}{h}$.
Download Solution in PDF
Was this answer helpful?
0
0
Top Questions on Modern Physics
Light of wavelength \( 400\, \text{nm} \) falls on a metal with work function \( \phi = 2.0\, \text{eV} \). If the intensity of the light is doubled, what happens to the maximum kinetic energy of the emitted photoelectrons?
BITSAT - 2025
Physics
Modern Physics
View Solution
The wavelength of a photon is 500 nm. Calculate its energy. (Planck’s constant \( h = 6.63 \times 10^{-34} \, \text{J·s} \), speed of light \( c = 3 \times 10^8 \, \text{m/s} \))
BITSAT - 2025
Physics
Modern Physics
View Solution
The energy of a photon is \(6.6 \times 10^{-19} \, \text{J}\). What is the frequency of the photon?
(Take Planck’s constant \(h = 6.6 \times 10^{-34} \, \text{Js}\))
VITEEE - 2025
Physics
Modern Physics
View Solution
The voltage and current of an ac circuit are represented as \( V = 100 \sin(100t) \) volt and \( i = 100 \sin(100t + \frac{\pi}{3}) \) mA respectively. The power dissipated in the circuit is:
UP Board XII - 2025
Physics
Modern Physics
View Solution
In Photo- electric effect
(A) There is no time interval (very small ~ 10⁻⁹s) between incidence of light and emissions of photo electrons.
(B) Higher the frequency of light, more is the kinetic energy of photo electrons emitted.
(C) A bright light yields more photo-electrons than dim light.
(D) Blue light emits slower electrons than red light.
Choose the correct answer from the options given below:
CUET (PG) - 2025
Geophysics
Modern Physics
View Solution
View More Questions
Questions Asked in IPU CET exam
The pair of equations \( x + 3y = 6 \) and \( 2x - 3y = 12 \) :
IPU CET - 2023
System of Linear Equations
View Solution
If \( A \) is the set of even natural numbers less than 8 and \( B \) is the set of prime numbers less than 7, then the number of relations from \( A \) to \( B \) is:
IPU CET - 2023
Sets
View Solution
If \( \sin y = x \sin(a + y) \), then \( \frac{dy}{dx} \) is:
IPU CET - 2023
Derivatives
View Solution
The value of \( x \), if \( \left| 5^2 - 4 \right| = 12x - 4 \), is:
IPU CET - 2023
Algebra
View Solution
If a, b, c are nonzero vectors such that a=8b, and c= -7b, then the angle between a and c is:
IPU CET - 2023
Vector Algebra
View Solution
View More Questions