Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
NEETPhysicsElectromagnetic Waves

Which of the following colours of visible light has the highest frequency?

Options

  1. AOrange
  2. BYellow
  3. CGreen
  4. DBlue

Correct answer

D. Blue

Step-by-step solution

The visible light spectrum in order of increasing frequency (or decreasing wavelength) is given by the sequence VIBGYOR (Violet, Indigo, Blue, Green, Yellow, Orange, Red). Since frequency is inversely proportional to wavelength ( c = ), the colour closest to violet has the highest frequency. Among the given options, blue appears first in the increasing wavelength sequence, meaning it has the shortest wavelength and therefore the highest frequency. Answer: Blue

Practice Electromagnetic Waves on Quantrex Academy →

More from Electromagnetic Waves

A parallel-plate capacitor of 50 F contains a dielectric slab of constant ( k ) with the same dimensions. If a time-varying potential difference is applied at a rate of 50 V/s . Wh 2026An electromagnetic wave travelling in a lossless dielectric medium having a dielectric constant, _r=9 , has the electric field, E_x=E₀ (kz-2 10^6 t) Vm ⁻¹ where E₀ is the amplitude 2026Match List I with List II : List I (Electromagnetic wave) List II (Production) A. Microwave I. Electrons in atoms emit light when they move from a higher energy level to a lower en 2026The following table presents the part of the electromagnetic spectrum and their corresponding major applications. Part of the electromagnetic spectrum Applications P. Microwave I. 2026A parallel plate capacitor made of circular plates is being charged such that the surface charge density on its plates is increasing at a constant rate with time. The magnetic fiel 2025The electric field in a plane electromagnetic wave is given by E_z=60 (5 x +1.5 10^9 t ) V / m . Then expression for the corresponding magnetic field is (here subscripts denote the 2025A parallel plate capacitor is charged by connecting it to a battery through a resistor. If I is the current in the circuit, then in the gap between the plates: 2024The electromagnetic radiation which has the smallest wavelength are 2024 Full Electromagnetic Waves list All NEET PYQs