(D) Calculation of frequency:$\lambda = 4000 \ \mathring{A} = 4000 \times 10^{-10} \ m = 4 \times 10^{-7} \ m$Since $\nu = \frac{c}{\lambda}$$\nu = \f

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

$7.5 \times 10^{14} \ s^{-1}, 4.96 \times 10^{-19} \ J$

(D) Calculation of frequency:$\lambda = 4000 \ \mathring{A} = 4000 \times 10^{-10} \ m = 4 \times 10^{-7} \ m$Since $\nu = \frac{c}{\lambda}$$\nu = \frac{3 \times 10^8 \ m/s}{4 \times 10^{-7} \ m} = 0.75 \times 10^{15} \ s^{-1} = 7.5 \times 10^{14} \ s^{-1}$Calculation of energy:$E = h\nu = 6.626 \times 10^{-34} \ J \cdot s \times 7.5 \times 10^{14} \ s^{-1} = 4.96 \times 10^{-19} \ J$

Class 11 Chemistry Structure of Atom Atomic models and Planck's quantum theory

Medium

The frequency and energy of a photon with a wavelength of $4000 \ \mathring{A}$ are respectively.......

A
$3.65 \times 10^{14} \ s^{-1}, 8.22 \times 10^{-10} \ J$
B
$8.22 \times 10^{-10} \ s^{-1}, 3.38 \times 10^{-10} \ J$
C
$3.38 \times 10^{-10} \ s^{-1}, 5.26 \times 10^{13} \ J$
D
$7.5 \times 10^{14} \ s^{-1}, 4.96 \times 10^{-19} \ J$

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Chemistry Questions

Chapter

Structure of Atom

Subtopic

Atomic models and Planck's quantum theory

When an electron jumps from $n = 5$ to $n = 2$ with all possible transitions,which of the following statements is correct?

Medium

View Solution

Give names of atomic models and write about Thomson model.

Difficult

View Solution

When $Z$ is doubled in an atom,which of the following statements are consistent with Bohr's theory?

Medium

View Solution

What is the energy in joules,required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state?
The ground state electron energy is $-2.18 \times 10^{-11} \ erg$.

Difficult

View Solution

If $P.E.$ of $3^{rd}$ shell is $-20 \ eV/atom$,then find the $I.P.$ of the $3^{rd}$ shell of that element.

Difficult

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

The frequency and energy of a photon with a wavelength of $4000 \ \mathring{A}$ are respectively.......

Similar Questions

When an electron jumps from $n = 5$ to $n = 2$ with all possible transitions,which of the following statements is correct?

Give names of atomic models and write about Thomson model.

When $Z$ is doubled in an atom,which of the following statements are consistent with Bohr's theory?

What is the energy in joules,required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state?The ground state electron energy is $-2.18 \times 10^{-11} \ erg$.

If $P.E.$ of $3^{rd}$ shell is $-20 \ eV/atom$,then find the $I.P.$ of the $3^{rd}$ shell of that element.

Vedclass Test Series

Exam Paper Generator

Online Exam Module

What is the energy in joules,required to shift the electron of the hydrogen atom from the first Bohr orbit to the fifth Bohr orbit and what is the wavelength of the light emitted when the electron returns to the ground state?
The ground state electron energy is $-2.18 \times 10^{-11} \ erg$.