Test SeriesFree PYQsExamsPricing

JEE Main 2026 Physics question

PhysicsDual Nature of Matter and RadiationJEE Main 2026

The work functions of two metals ( and ) are in the ratio. When these metals are exposed to photons of energy eV, the kinetic energy of liberated electrons of is in the ratio of . The work functions (in eV) of and are respectively.

Answer: 2

Solution

Sol. KE = E -

(KE_{max} = 6 - φ_1 ...(1)

(KE_{max} = 6 - φ_2 ...(2)

By eq. (1) divide eq. (2)

Missing argument for \frac\frac{(\text{KE}_{max})_1}{(\

See the full step-by-step solution

Create a free account to read the complete working (8 steps), and practise questions like this in a timed test.

Create a free account

Question ID VK-001363