Exams › NEET › Chemistry

The energies E₁ and E₂ of two radiations are 25 eV and 50 eV, respectively. The relation between their wavelengths i.e., λ₁ and λ₂ will be:

1. λ₁ = λ₂
2. λ₁ = 2λ₂
3. λ₁ = 4λ₂
4. λ₁ = 1/2 λ₂

Correct answer: λ₁ = 2λ₂

Solution

Energy (E) and wavelength (λ) are inversely proportional (E = hc/λ). Since E₂ is double E₁, λ₁ will be twice λ₂, i.e., λ₁ = 2λ₂.

Related NEET Chemistry questions

• Protons and neutrons are also called
• From the \( \alpha \) -particle scattering experiment, Rutherford concluded that: This question has multiple correct options
• Which of following was not explained by Rutherford?
• The energy of an electron in the ground state of \( \boldsymbol{H} \) atom is \( -\mathbf{1 3 . 6 e V} \) The negative sign indicates that:
• Outer electronic configuration of Cl⁻ is:
• The sub-shell with lowest value of (n + l) is filled up first. When two or more sub-shells have the same (n + l) value, the sub-shell with lowest value of 'n' is filled up first. Therefore, the correct order is:

⚔️ Practice NEET Chemistry free + battle 1v1 →